Feature: Resolution 1080 P Pixel 8MPWi Fi Support Two-way voice intercom Support APP Name KALAYRemote Control Support TF Card Support up to 64 G Battery Built in 500m Ah, can work 80 minutes Description:50-fold digital telescope KALAY APP Platform WIFI remote monitoring video intercom WIFI remote mobile acoustic detection video DC input 5V 1AT-flash card with up to 64 G High-capacity polymer lithium 500 m A batteries can sustain camera shooting for about 80 minutes MINI 5PIN USB (Universal Serial Bus), USB (Universal Serial Bus) cable 2.5meter long USB (Universal Serial Bus) cable is a power line without data function 30CM USB (Universal Serial Bus) cable with data function can read TF card content via computer Download & Installation (APP): Scanning 2-D code through mobile phone or:1. Android users should search for Kalay in Google Play or Android Market 2. IOS Apple (Apple System) users should download Kalay from A pp Store Download & install it to the phone Charge:1. Connect the computer to charge, or connect the USB (Universal Serial Bus) DC to charge.2. Charge while recording (it is fully charged with red light always on). Reset: In case that the machine crashes & still cannot work after you click the keys, you can reset themachine by inserting a pointed object into the reset hole. After reset, it can be used normally. Shutdown: You can hold ON/OFF button for about 2-3 seconds to shut down the machine after video, photography & functional mode stop.LED light: There are two LED lights, red & blue, the blue light is always on when working, & the red light ison when charging or changing video (red light is on whe