Hikvision DS-2CD2646G2HT-IZS2U/S(L)(RB) 4MP AcuSense Strobe Light and Audible Warning Motorized Varifocal Bullet Network Camera

Technical Specification

Features:

Make: Hikvision
Model code: DS-2CD2646G2HT-IZS2U/S(L)(RB)
Series: Hikvision Pro Series with ColorVu
Chip Inch Size: 1/3 inch
Colour Type: Colour / Monochrome

Additional info:

High quality imaging with 4 MP resolution Clear imaging against strong back light due to 120 dB WDR technology Efficient H.265+ compression technology Motorized varifocal lens for easy installation and monitoring Focus on human and vehicle classification based on deep learning Active strobe light and audio alarm to warn intruders off Provide real-time security via built-in two-way audio Water and dust resistant (IP67) and vandal resistant (IK10)

Contact manufacturer Contact manufacturer Datasheet Datasheet

Make	Hikvision
Manufacturer	Hikvision
Category	CCTV>IP cameras
Model code	DS-2CD2646G2HT-IZS2U/S(L)(RB)
Series	Hikvision Pro Series with ColorVu
Chip Inch Size	1/3 inch
Colour Type	Colour / Monochrome
Resolution	4MP resolution
Sensitivity Lux	Color: 0.001 Lux @ (F1.0, AGC ON),B/W: 0 Lux with IR
Electrical Specifications	Voltage: 12 V DC, PoE Power Consumption: 14.5 W (12 V DC) / 18 W (PoE)
Focal Length mm	2.8 ~ 12
Wide Dynamic Range	Yes
Back Light Compensation	Yes
Auto Gain Control	Yes
White Balance	Yes
Electronic Shutter Range	1/3 s to 1/100,000 s
S/ N (Signal/ Noise) Ratio dB	≥ 52 dB
Compression Type	H.265/H.264/H.264+/H.265+/MJPEG
Network Properties	Interface: RJ45 10 M/100 M self-adaptive Ethernet Network Protocols: TCP/IP, ICMP, HTTP, HTTPS, FTP, DHCP, DNS, DDNS, RTP, RTSP, RTCP, NTP, UPnP, SMTP, IGMP, 802.1X, QoS, IPv4, IPv6, UDP, Bonjour, SSL/TLS, PPPoE, SNMP, WebSocket, WebSockets, SRTP, SFTP
Physical Specifications	Weight g: 1520 Dimensions mm: 298 x 97.9 x 95.7
Environmental Specifications	Protection: IP67 Operating Temperature ^oC: -30 ~ +60 C (-22 ~ +140 F) Operating Humidity %: ≤ 95
Additional info	High quality imaging with 4 MP resolution Clear imaging against strong back light due to 120 dB WDR technology Efficient H.265+ compression technology Motorized varifocal lens for easy installation and monitoring Focus on human and vehicle classification based on deep learning Active strobe light and audio alarm to warn intruders off Provide real-time security via built-in two-way audio Water and dust resistant (IP67) and vandal resistant (IK10)
Download PDF version Download PDF version

More Hikvision IP cameras

View all

See comparison of Hikvision DS-2CD2646G2HT-IZS2U/S(L)(RB) with similar Hikvision IP cameras

Hikvision DS-2CD2023G0-I 2 MP IR Fixed Bullet Network Camera

Hikvision DS-2CD2025FWD-I 2 MP ultra-low light network bullet camera

Hikvision DS-2CD4A24FWD-IZ(H)(S)(B) 2MP Smart IP Outdoor Bullet Camera

Hikvision DS-2CD2T46G2-4I(2.8mm)(C) 4 MP AcuSense Fixed Bullet Network Camera

Hikvision DS-2CD2046G2-IU/SL(6mm)(C) 4 MP AcuSense Strobe Light and Audible Warning Fixed Mini Bullet Network Camera

Hikvision DS-2CD3T43G0-2/4I(S) 4MP Fixed Bullet Network Camera

Hikvision iDS-2CD6024FWD/B 2MP intelligent network camera

Hikvision DS-2CD2355FWD-I 5 MP network turret camera

Hikvision iDS-2CD6124FWD-IZ/F 2MP intelligent network dome camera

Hikvision DS-2CD2326G1-I/SL 2 MP IR Fixed Turret Network Camera

Hikvision DS-2CD242RF-I(W) 2MP IR Cube Network Camera

Hikvision DS-2CD4A25FWD-IZ(H)(S) 2MP smart IP outdoor bullet camera

Hikvision DS-2CD2T23G0-I5/I8 2 MP IR Fixed Bullet Network Camera

Hikvision DS-2CD2935FWD-I(S) 3 MP Network Fisheye Camera

Hikvision iDS-2CD6412FWD/C 1.3 MP intelligent network camera

Hikvision DS-2CD2685FWD-IZS 8 MP WDR Vari-focal Network Bullet Camera

Hikvision DS-2CD2083G0-I 8 MP IR Fixed Bullet Network Camera

Hikvision DS-2CD3643G1-IZ(S) 4MP Moto Varifocal Bullet Network Camera

Hikvision DS-2CD2625FWD-IZS 2 MP Ultra-Low Light Network Bullet Camera

Hikvision DS-2CD2343G0-I 4 MP IR Fixed Turret Network Camera

Hikvision DS-2CD2T46G2-2I(4mm)(C) 4 MP AcuSense Fixed Bullet Network Camera

Hikvision DS-2CD2T25FWD-I5/I8 2 MP ultra-low light network bullet camera

Hikvision DS-2XS2T41G0-ID/4G/C04S05(4mm) 4MP Solar-powered Security Camera Setup

Hikvision DS-2CD2646G2-IZS(2.8-12mm)(C) 4 MP AcuSense Motorized Varifocal Bullet Network Camera

Hikvision DS-2CD2T46G2-4I(4mm)(C) 4 MP AcuSense Fixed Bullet Network Camera

Hikvision DS-2CD5026G0-(A)(P) 2 MP Smart Network Box Camera

Hikvision iDS-2CD6024FWD/F 2 MP intelligent network camera

Hikvision DS-2CD2046G2-IU/SL(4mm)(C) 4 MP AcuSense Strobe Light and Audible Warning Fixed Mini Bullet Network Camera

Hikvision DS-2CD2043G2-I(6mm) 4 MP WDR Fixed Bullet Network Camera

Hikvision DS-2CD2323G0-I 2 MP IR Fixed Turret Network Camera

Hikvision DS-2CD2646G2-IZS(2.8-12mm)/C/O-STD 4 MP AcuSense Motorized Varifocal Bullet Network Camera

Hikvision DS-2CD2T46G2-4I(6mm)(C) 4 MP AcuSense Fixed Bullet Network Camera

Hikvision DS-2CD2T46G2-2I(6mm)(C) 4 MP AcuSense Fixed Bullet Network Camera

Hikvision DS-2XS2T47G1-LD/4G/C18S40(6mm) 4MP ColorVu Solar-powered Security Camera Setup

Hikvision DS-2CD2T46G1-4I/SL 4 MP IR Fixed Bullet Network Camera

Hikvision DS-2CD2H43G0-IZS 4 MP IR VF Turret Network Camera

Hikvision DS-2CD205RFWD-I 5 MP Network Bullet Camera

Hikvision DS-2TD2615-7 Thermal & Optical Network Bullet Camera

Hikvision DS-2CD202PFWD-I 2 MP Ultra-Low Light Network Bullet Camera

Hikvision DS-2CD2455FWD-I(W) 5 MP IR Fixed Cube Network Camera

Hikvision DS-2CD2T46G2-4IY 4 MP AcuSense Anti-Corrosion Fixed Bullet Network Camera

Hikvision DS-2CD4625FWD-IZ(H)(S) 2MP smart IP vandal-proof bullet camera

Hikvision DS-2CD2H23G0-IZS 2 MP IR VF Turret Network Camera

Hikvision DS-2CD202RFWD-I 2 MP Ultra-Low Light Network Bullet Camera

Hikvision DS-2CD2643G1-IZS(2.8-12mm) 4 MP Outdoor WDR Motorized Varifocal Bullet Network Camera

Hikvision DS-2CD2443G2-I(2.8mm) 4 MP AcuSense Built-in Mic Fixed Cube Network Camera

Hikvision DS-2CD2046G2-IUSL(2.8mm)(C) 4 MP AcuSense Strobe Light and Audible Warning Fixed Mini Bullet Network Camera

Hikvision DS-2XS2T47G1-LDH/4G/C18S40(4mm)/O-STD/US 4MP ColorVu Solar-powered Security Camera Setup

Hikvision DS-2CD2046G2-I(2.8mm)(C) 4 MP AcuSense Fixed Mini Bullet Network Camera

Hikvision DS-2XS2T47G1-LDH/4G/C18S40(4mm)/O-STD/LA 4MP ColorVu Solar-powered Security Camera Setup

Hikvision DS-2XS2T47G1-LDH/4G/C18S40(6mm)/O-STD/LA 4MP ColorVu Solar-powered Security Camera Setup

Hikvision DS-2CD205PFWD-I 5 MP Network Bullet Camera

Hikvision DS-2CD6412FWD-XX 1.3 MP covert network camera

Hikvision DS-2CD2046G2-I(6mm)(C) 4 MP AcuSense Fixed Mini Bullet Network Camera

Hikvision DS-2CD2T32 2 megapixel EXIR bullet network camera

Hikvision DS-2CD2635FWD-IZS 3 MP WDR Vari-focal Network Turret Camera

Hikvision DS-2XS2T47G1-LD/4G/C18S40(4mm) 4MP ColorVu Solar-powered Security Camera Setup

Hikvision DS-2XS2T47G1-LDH/4G/C18S40(6mm)/O-STD/US 4MP ColorVu Solar-powered Security Camera Setup

Hikvision DS-2CD2046G2-IU(4mm)(C) 4 MP AcuSense Fixed Mini Bullet Network Camera

Hikvision DS-2CD2H35FWD-IZS 3 MP WDR Vari-focal Network Turret Camera

Hikvision DS-2TD2615-10 Thermal & Optical Network Bullet Camera

Hikvision DS-2CD2046G2-IU(2.8mm)(C) 4 MP AcuSense Fixed Mini Bullet Network Camera

Hikvision DS-2CD2046G2-IU(6mm)(C) 4 MP AcuSense Fixed Mini Bullet Network Camera

Hikvision DS-2CD2443G2-I(2mm) 4 MP AcuSense Built-in Mic Fixed Cube Network Camera

Hikvision DS-2TD2866-25/K Thermal & Optical Network Bullet Camera

Hikvision DS-2TD6236-75C2L Thermal & Optical Bi-spectrum Network Positioning System

Hikvision DS-2CD2T46G2H-4I(2.8mm)(eF) 4 MP Powered by Darkfighter Fixed Bullet Network Camera

Hikvision DS-2CD2T46G2H-2I(2.8mm)(eF) 4 MP Powered by Darkfighter Fixed Bullet Network Camera

Hikvision DS-2CD2T46G2H-2I(4mm)(eF) 4 MP Powered by Darkfighter Fixed Bullet Network Camera

Hikvision DS-2CD2H25FWD-IZS 2 MP WDR Vari-focal Network Turret Camera

Hikvision DS-2CD2443G2-I(4mm) 4 MP AcuSense Built-in Mic Fixed Cube Network Camera

Hikvision DS-2XS2T47G1-LDH/4G/C18S40(6mm) 4MP ColorVu Solar-powered Security Camera Setup

Hikvision DS-2XS2T41G0-ID/4G/C04S05(6mm) 4MP Solar-powered Security Camera Setup

Hikvision DS-2TD2636-10 Thermal & Optical Network Bullet Camera

Hikvision NK44W0H-1T(E) 4MP H.265 Bullet WiFi Kit

Hikvision DS-2DY9250IAX-A 2MP 50× Laser Network Positioning System

Hikvision DS-2CD3343G2-IU 4 MP WDR Fixed Turret Network Camera

Hikvision DS-2CD6D44G1H-IZS 4-Directional Multisensor Network Camera

Hikvision DS-2TD2636-15 Thermal & Optical Network Bullet Camera

Hikvision DS-2CD2H55FWD-IZS 5 MP WDR Vari-focal Network Turret Camera

Hikvision DS-2CD3043G0-I 4MP Fixed Mini Bullet Network Camera

Hikvision DS-2CD6D44G1-IZS 4-Directional Multisensor Network Camera

Hikvision DS-2CD2646G2-IZS 4 MP AcuSense Motorized Varifocal Bullet Network Camera

Hikvision DS-2CD3343G0-I 4MP Fixed Turret Network Camera

Hikvision NKS422W03H 2MP H.265 One bullet + One PTDome WiFi NVS Kit

Hikvision NKS422W02H 2MP H.265 One bullet + One turret WiFi NVS Kit

Hikvision DS-2CD2046G2H-I2U/SL(2.8mm)(eF) 4MP AcuSense Strobe Light and Audible Warning Fixed Bullet Network Camera

Hikvision DS-2CD2386G2H-IS2U/SL(2.8mm)(eF) 8MP AcuSense Strobe Light and Audible Warning Fixed Turret Network Camera

Hikvision DS-2CD2346G2H-IS2U/S(L)(RB) 4MP AcuSense Strobe Light and Audible Warning Fixed Turret Network Camera

Hikvision NK44W0H(E) 4MP H.265 Bullet WiFi Kit

Hikvision DS-2CD6D42G0-IS(4mm) Dual-Directional PanoVu Camera

Hikvision DS-2CD2366G2H-IS2U/SL(2.8mm)(eF) 6MP AcuSense Strobe Light and Audible Warning Fixed Turret Network Camera

Hikvision DS-2CD6D42G0-IS(2.8mm) Dual-Directional PanoVu Camera

Hikvision DS-2CD2046G2H-IU(4mm)(eF) 4 MP Powered by Darkfighter Fixed Mini Bullet Network Camera

Hikvision DS-2CD6D42G0-IS(6mm) Dual-Directional PanoVu Camera

Hikvision DS-2CD2366G2H-IS2U/SL(4mm)(eF) 6MP AcuSense Strobe Light and Audible Warning Fixed Turret Network Camera

Hikvision DS-2CD2046G2H-IU(2.8mm)(eF) 4 MP Powered by Darkfighter Fixed Mini Bullet Network Camera

Hikvision DS-TCG405-E(12V/Poe) 4MP ANPR Intelligent Entrance Video Unit

Hikvision DS-2CD2386G2H-IS2U/SL(4mm)(eF) 8MP AcuSense Strobe Light and Audible Warning Fixed Turret Network Camera

Hikvision DS-2CD2046G2H-I2U/SL(4mm)(eF) 4MP AcuSense Strobe Light and Audible Warning Fixed Bullet Network Camera

Hikvision DS-TCG405-E(220V) 4MP ANPR Intelligent Entrance Video Unit

Hikvision DS-TMC407-E(LCD) All-in-One Entrance & Exit Manager

Hikvision DS-TMC407-E/TCG400 All-in-One Entrance & Exit Manager

Hikvision 2MP IR bullet network camera joins Easy IP Solution range

Hikvision DS-2CD2T42WD-I3/I5/I8 4MP EXIR network bullet camera

Hikvision DS-2CD2020F-I(W) 2MP IR bullet network camera

Hikvision DS-2CD2412F-I(W) 1.3MP IR cube network camera with HD720p video

Hikvision Anti-Corrosion Series Cameras - Next-Level Endurance & Performance

Hikvision DS-2CD2T22WD-I3/I5/I8 2MP EXIR network bullet camera

Hikvision DS-2CD2012-I 1/3-inch IR mini bullet camera

Hikvision DS-2CD2010F-I(W) 1.3MP IR bullet network camera

Hikvision DS-2CD2620F-I 2 megapixel vari-focal IR bullet camera

Hikvision DS-2XS2T41G1-ID/4G/C05S07(4mm) 4MP Solar-powered Security Camera Setup

Hikvision DS-2CD2342WD-I 4MP WDR EXIR Turret network camera

Hikvision DS-2XS3Q47G1-LDH/4G/C18S40(6mm) 4MP ColorVu Solar-powered Security PT Camera Setup

Hikvision DS-2CD2642FWD-I(Z)(S) 4MP vari-focal bullet network camera

Hikvision DS-2CD2420F-I(W) 2MP IR cube network camera with built-in Wi-Fi

Hikvision DS-2CD242PF-I(W) 2MP IR Cube Network Camera

Hikvision DS-2CD2032F-I(W) IR mini bullet network camera

Hikvision DS-2CD2T32-I3/I5/I8 3MP EXIR bullet IP camera

Hikvision DS-2CD2010-I 1.3 megapixel IR mini bullet camera

Hikvision unveils new range of pan & tilt cameras to help SMB users do more with less

Hikvision DS-2CD2622FWD-I(Z)(S) 2MP WDR vari-focal bullet network camera

Hikvision DS-2CD2032-I 1/3-inch IR mini bullet camera

Hikvision DS-2CD2610F-I(S) 1.3MP vari-focal IR bullet camera

Hikvision DS-2CD2043G2-I(2.8mm) 4 MP WDR Fixed Bullet Network Camera

Hikvision DS-2CD2T43G0-I5/I8 4 MP IR Fixed Bullet Network Camera

Hikvision DS-2XS2T41G1-ID/4G/C05S07(6mm) 4MP Solar-powered Security Camera Setup

Hikvision DS-2CD6510D-I(O) 1.3MP 1/3-inch CMOS Mobile IPC

Hikvision DS-2CD4012FWD-(A)(P)(W) 1.3 MP wide dynamic range box camera

Hikvision DS-2CD2T43G2-2I/4I 4 MP AcuSense Fixed Bullet Network Camera

Hikvision DS-2CD3T43G2-2IS/4IS 4 MP WDR EXIR Fixed Bullet Network Camera

Hikvision DS-2CD2022-I 2 megapixel IR mini bullet network camera

Hikvision DS-2CD2942F-(I)(W)(S) 4MP compact fisheye network camera

Hikvision DS-2CD2T12-I3/I5/I8 1.3 MP EXIR bullet camera

Hikvision DS-2CD4212F-I(Z)(H)(S) 1.3MP IR bullet IP camera

Hikvision DS-2CD4024F-(A)(P)(W) 2MP full HD IP box camera

Hikvision DS-2CD2643G2-IZS(2.8-12mm) 4 MP AcuSense Motorized Varifocal Bullet Network Camera

Hikvision DS-2CD2335FWD-I 3 MP ultra-low light network turret camera

Hikvision DS-2CD3843G0-AP 4MP Indoor Box Network Camera

Hikvision DS-2CD202RF-I(W) 2MP IR Bullet Network Camera

Hikvision DS-2CD2442FWD-IW 4 MP WDR network cube camera

Hikvision DS-2CD2043G0-I 4 MP IR Fixed Bullet Network Camera

Hikvision DS-2CD2T55FWD-I5/I8 5 MP network bullet camera

Hikvision DS-2CD8254F-EI 3MP IR VF bullet camera

Hikvision DS-2CD4232FWD-I(Z)(H)(S) 3MP IR bullet IP camera

Hikvision DS-2CD2322WD-I 2MP WDR EXIR Turret network camera

Hikvision DS-2CD4224F-I(Z)(H)(S) 2MP full HD IR bullet IP camera

Hikvision DS-2CD3643G2-IZS 4 MP AcuSense Motorized Varifocal Bullet Network Camera

Hikvision DS-2CD2432F-I(W) IR cube network camera

Hikvision DS-2XS3Q47G1-LDH/4G/C18S40(4mm) 4MP ColorVu Solar-powered Security PT Camera Setup

Hikvision DS-2CD2612F-I(S) 1.3MP IR bullet IP camera

Hikvision DS-2CD4035FWD-(A) 3MP smart IP box camera

Hikvision DS-2CD4635FWD-IZ(H)(S) 3MP smart IP vandal-proof bullet camera

Hikvision iDS-2PT9122IX-DE/S (5-50 mm) (4 mm) PanoVu PT Series 2MP + 2MP Target Capture Camera

Hikvision DS-2CD4212FWD-I(Z)(H)(S) 1.3MP IR bullet IP camera

Hikvision DS-2CD2F42FWD-I(W)(S) 4MP WDR mini PT network camera

Hikvision DS-2CD2143G2-I(S) 4 MP Vandal WDR Fixed Dome Network Camera

Hikvision DS-2CD6510-I(O) 1.3MP outer-vehicle network camera

Hikvision LightFighter ultra-high WDR camera range

Hikvision DS-2CD2043G2-IU(2.8mm) 4 MP WDR Fixed Bullet Network Camera

Hikvision DS-2CD2643G1-IZ(2.8-12mm) 4 MP Outdoor WDR Motorized Varifocal Bullet Network Camera

Hikvision DS-2XS3Q47G1-LD/4G/C18S40(4mm) 4MP ColorVu Solar-powered Security PT Camera Setup

Hikvision DS-2CD2643G0-IZS 4 MP IR VF bullet network camera

Hikvision DS-2CD2646G2-IZSU/SL(2.8-12mm)(C) 4 MP AcuSense Strobe Light and Audible Warning Motorized Varifocal Bullet Network Camera

Hikvision DS-2CD2623G0-IZS 2 MP IR VF Bullet Network Camera

Hikvision DS-2CD883F-E(W) 5 megapixel IP camera

Hikvision DS-2CD2T35FWD-I5/I8 3 MP Ultra-Low Light Network Bullet Camera

Hikvision DS-2XE6242F-IS/316L 4 MP explosion-proof network bullet camera

Hikvision DS-2XS2T47G1-LDH/4G/C18S40(4mm) 4MP ColorVu Solar-powered Security Camera Setup

Hikvision DS-2CD3043G2-IU 4 MP WDR Fixed Bullet Network Camera

Hikvision DS-2CD2422FWD-IW 2.0 MP WDR network cube camera

Hikvision DS-2CD4A35FWD-IZ(H)(S) 3MP smart IP outdoor bullet camera

Hikvision iDS-2CD6124FWD-I(Z)/H 2MP intelligent network dome camera

Hikvision DS-2CD2043G2-I 4 MP WDR Fixed Bullet Network Camera

Hikvision DS-2XE6222F-IS/316L 2 MP explosion-proof network bullet camera

Hikvision iDS-2CD6124FWD-I(Z)/C 2MP intelligent network dome camera

Hikvision launches AcuSense network cameras

Hikvision DS-2CD6520D-I(O) 2MP mini dome

Hikvision DS-2CD2043G2-IU(4mm) 4 MP WDR Fixed Bullet Network Camera

Hikvision DS-2CD4032FWD-(A)(P)(W) 3MP WDR box IP camera

Hikvision DS-2CD2T46G2-ISU/SL 4 MP AcuSense Strobe Light and Audible Warning Fixed Bullet Network Camera

Hikvision DS-2CD2046G2-I(4mm)(C) 4 MP AcuSense Fixed Mini Bullet Network Camera

Hikvision DS-2CD2325FWD-I 2 MP ultra-low light network turret camera

Hikvision DS-2CD2F22FWD-I(W)(S) 2MP WDR mini PT network camera

Hikvision DS-2CD2043G2-I(U) 4 MP WDR Fixed Bullet Network Camera

Hikvision iDS-2CD6810F/C indoor dual-lens people counting camera

Hikvision DS-2CD2446G2-I 4 MP AcuSense Fixed Cube Network Camera

Hikvision DS-2CD2043G2-IU(6mm) 4 MP WDR Fixed Bullet Network Camera

Hikvision DS-2CD2043G2-I(4mm) 4 MP WDR Fixed Bullet Network Camera

Hikvision DS-2XS3Q47G1-LD/4G/C18S40(6mm) 4MP ColorVu Solar-powered Security PT Camera Setup

Hikvision DS-2CD2035FWD-I 3 MP ultra-low light network bullet camera

Hikvision DS-2CD8254F-EI(Z) 3MP IR bullet IP camera

Hikvision DS-2CD6520DT-I(O) 2MP network mini dome camera

Hikvision DS-2CD2T46G2-2I(2.8mm)(C) 4 MP AcuSense Fixed Bullet Network Camera

Hikvision DS-2CD2T46G2-2I/4I 4 MP AcuSense Fixed Bullet Network Camera

Hikvision DS-2TS16-35VI Handheld Thermal & Optical Bi-spectrum Binocular

Hikvision DS-2CD2942F-(I)(S) 4 MP compact fisheye network camera

Hikvision DS-2CD2655FWD-IZS 5 MP WDR Vari-focal Network Bullet Camera

Hikvision DS-2CD6510DT-I(O) 1.3MP network mini dome camera

Hikvision DS-2CD2055FWD-I 5 MP network bullet camera

Hikvision DS-2CD2T22 2 megapixel bullet network camera

Hikvision DS-2CD2T26G1-4I/SL 2 MP IR Fixed Bullet Network Camera

Hikvision One-Stop SMB Solutions

Hikvision DS-2CD2T46G2H-4I(4mm)(eF) 4 MP Powered by Darkfighter Fixed Bullet Network Camera