Solar Panel Rechargeable BatteryYour camera apllied with rechargable battery, which is charged by solar panels,when the camera is connected to the Solar Panel and it will get non-stop power all day and all night.It can be charged even on rainy daysLarge capacity battery;Long battery lifeThe camera needs to use 2pcs 2600mAh 18650 rechargeable battery. NOTE: Battery is Optional.High-grade protection levelSuitable for all kinds of outdoor weather,Not afraid of wind and sun, easy to deal with rain and snow. IP66 rated dustproof and waterproof100% Wire-Free, Place It Anywhere FreelyNo network or power cable, no drilling and no outlets needed. Based on 2.4 GHz WiFi and works independently.Hidden TF card slot design,Local card storage, historical video can be viewed at any timeProduct SizeMini wifi solar outdoor cameraProduct DescriptionPixel:3MPImage Sensor:PIR sensor + radar dual alarm detectionViewing Angle:90°Day Night Mode :Auto change with IR-CUT removableIR Distance:10~20 metersCompression Standard:H.264Display Resolution:3MP Full HDCharging Mode:Solar panel powerPIR human sensing:SupportInduction sensitivity:User adjustableStorage Support TF Card max 128GBAudio input Built-in high sensitivity microphoneAudio output Built-in high-power speakersConnection mode supports wireless network / AP hot spot connectionWireless standard 802.11b/g/n;Video-talk Remote Video-talkSmart Alarm Support PIR human infrared detection,Waterproof grade IP66Working temperature and humidity -20 °C ~ 50 °C, humidity less than 90 %(no condensation)