System Supported: 1.Support Smart Mobile System(Nokia Symbian S60 System; Android System; Windows Mobile 6.0 System;)2. Support PC and HDPC;3. Support Sony PS3 Player;4. Use with non-BT equipped PC or Laptop require a USB Bluetooth-compatible adapter; Features: 1.wireless Bluetooth-compatible 3.0 interface2.Features comfortable, ergonomic design with 49 keys3.The intelligence power source management system helps you conserve battery power for when you really need it, battery life longer than similar products by 50%4.Come with particular power managing software, indicates the power capacity in Microsoft Windows System automatically5.Built-in software solutions with Bluetooth-compatible human interface device and comply with the standard version of the Bluetooth-compatible SIG Bluetooth-compatible 3.06.Built in rechargeable Li-ion batter, support USB charge; Specifications: 1.Frequency band: 2.4 - 2.4835GHz unlicensed ISM band2.Receiving sensitivity: -75bm (standard)3.RF output power: up to 4bm as maximum, good for your health with lowest radiates4.Operation distance: 0 - 10 m5.Operating temperature: -10~556.Workable environment: 0-557.Humidity: 20%-50%8.Size: 100 x 60 x 6 mm/3.94x2.36x0.24inch Package includes: 1 X Bluetooth-compatible keyboard 1 X USB cable