IMOU Home Alarm Kit 11 Ranger 2C Alarm System Computers 4835 GHz Radio sensitivity 38 4835 GHz Radio sensitivity 38 dB Range Up to 10 m Current consumption of the switched off transmitter 2 uA Current consumption of the transmitter during operation (Video mode) 25 mA Current consumption of the transmitter during operation (Bluetooth mode) 30 40 mA Current consumption of the receiver during operation 14 mA Signal to noise ratio of the microphone ≥ 65 dB Frequency response 20 Hz 20 kHz Monitoring Unidirectional Microphone Electret Battery capacity 300 mAh Talk time Approx and hot air drying The ability to schedule automatic arming and disarming eliminates the need for daily manual operation and enhances user convenience the camera becomes an active security element