Material: Plastic housing - Frequency: 2.4GHz - Operating Range: 200 meters (in open area) - Transmitting Power: 20dBm - Transmission Rate: 3Mbps - Frequency Response: 20Hz~20KHz - Specification of Monitor: - 3.2" LCD screen (320 x 240) - Built-in 3.7V 1000mAh rechargeable battery - SNR: >= 75dB - Receiving Sensitivity: - Specification of Camera: - Colors CMOS image sensor - Viewing Angle: 55 degrees - Resolution: 640 x 480 - Video Frame Rate: @25~30fps - Video Compression Format: H.264 - Audio Compression Format: SPEEX - With 8-LED IR night vision lights - Night Vision Range: 3 meters - Built-in 3.7V 850mAh rechargeable battery - Features: Motion detection / Can set up 5 groups alarm clock - Supported Languages: English / French / German / Italian / Spanish - Supports 4 camera at the same time - Supports TF card up to 16GB - Accessories Include: - 1 x 100~240V Power adapter (2-flat-pin plug / 150cm-cable) - 1 x USB cable (114cm) - 2 x Brackets - 1 x English manual