Battery not included. Additional camera not included. Digital wireless technology provides excellent image and sound clarity. Infrared night vision for round the clock monitoring. 2.4 in. LCD color monitor or receiver. Monitor kit will provide parents the reassurance. Interference-free. Wireless video or audio monitoring. 4-channel: 1 monitor supports up to 4-camera. S2B circuit. Infrared night vision allows low light viewing up to 10 ft. from camera. High sensitivity microphone. Easy to position camera with swivel-head. 2-way communication. Up to 330 feet open area wireless transmission. VOX standby mode (voice activated power saver mode). Both video monitor and camera can be powered by adapter or battery operated. Rechargeable lithium battery (monitor only). Camera uses 3-AAA battery. Built-in belt clip on monitor. Transmission frequency: 2400 MHz - 2480 MHz. Transmission power: 12 dBm. Operating frequency: 2450 MHz. Modulation mode: FHSS. Operating temperature: 32 F - 140 F. Operating humidity: 20 % - 80 % RH. Consumption current: 150 mA + 15 mA. Power supply: DC 5 volt. Effective pixel: 320 x 240. Receiving sensitivity: -85 dBm. Video system: NTSC / PAL. Battery working time: 5 hr.. Color configuration: RGB. Camera pixel image: NTSC: 510 x 492. PAL: 628x582. Sensor: Color CMOS image sensor. Horizontal resolution: 360 line. Viewing angle: 60 deg.. Frame: 25. IR LED: 10. Lens: F = 6.0 mm. Minimum illumination: 1.5 LUX (IR off) 0 LUX (IR on). Band width: 4 MHz. Night vision distance: 10 ft.. Battery working time: 8 hr. Motion detection distance: > 5m. Sound control sensitivity: >60 dBA. Component: Wireless monitor x 1 pc wireless camera x 1 pc 5 volt power supply x 2 pc AV cable x 1 pc. White or gray color. Camera: 2.8 in. W x 2 in. D x 4.7 in. H (4.5 oz). Overall: 3.9 in. L x 3.4 in. W x 4 in. H. Instruction Manual.Battery not includedAdditional camera not includedDigital wireless technology provides excellent image and sound clarityInfrared night vision for round the clock monitoring2.4 in. LCD color monitor or receiverMonitor kit will provide parents the reassuranceInterference-freeWireless video or audio monitoring4-channel: 1 monitor supports up to 4-cameraS2B circuitInfrared night vision allows low light viewing up to 10 ft. from cameraHigh sensitivity microphoneEasy to position camera with swivel-head2-way communicationUp to 330 feet open area wireless transmissionVOX standby mode (voice activated power saver mode)Both video monitor and camera can be powered by adapter or battery operatedRechargeable lithium battery (monitor only)Camera uses 3-AAA batteryBuilt-in belt clip on monitorTransmission frequency: 2400 MHz - 2480 MHzTransmission power: 12 dBmOperating frequency: 2450 MHzModulation mode: FHSSOperating temperature: 32 F - 140 FOperating humidity: 20 % - 80 % RHConsumption current: 150 mA + 15 mAPower supply: DC 5 voltEffective pixel: 320 x 240Receiving sensitivity: -85 dBmVideo system: NTSC / PALBattery working time: 5 hr.Co