TF card supports a maximum of 32GB Input built-in microphone Output speaker Main frequency 180MHz Charging voltage 5V/1A Charging current 420mA Power consumption of 1.5W (on infrared); 1.0W (without infrared) Battery capacity polymer 2S582728/960mAH/4.2V The battery standby time can last for about 6.2 consecutive hours Low power consumption current 1mA Low power standby time of 45 days The infrared irradiation distance is 1-5 meters with the best effect within 2 meters Working temperature and humidity -10 ℃~50 ℃ humidity less than 95% (no condensation) Sensor chip 0328C Angular flat angle Display resolution 640 * 480P (30W) Day night conversion mode manual/timed 2D Digital Noise Reduction Video compression standard MJPEG Audio compression standard PCM Audio transmission recording Power interface Type-C interface Wireless standard IEEE802.11b/g/ Frequency range 2.4 GHz to 2.4835 GHz Channel bandwidth support of 20MHz Wireless Security Encryption 64/128-bit WPA/WPA2 WPA-/WPA2- The maximum distance between hotspot connections is 15-20 meters type:B:Without accessories Colour:Black Material:plastic Size:. 36 x 40 x 36mm Package Contents: 1 x WiFi Monitoring Camera Only the above package content other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.