Item Type: Mini Bluetooth Keyboard <br>Material: ABS <br>Weight: Approx. 87g/3.1oz <br>Color: Black <br>Bluetooth Version: V3.0 <br>Bluetooth Frequency: 2.4GHz <br>Signal Transmission distance: 10m/32.8ft <br>Working Voltage: 3.7V <br>Working Current: <1mA <br>Charging Time: about 3 hours <br>Battery Specification: Lithium battery 1200mAh (built-in) <br>Charging Interface: Micro <br>Fitment: for IOS Tablet, phone 4.0 OS, PS3, Smart Phone, PC, HTPC <br>Button Layout: 49 keys1、Light in weight and compact in size, portable and easy to carry, will not occupy a large space. <br>2、Built?in intelligent power management software to save power, longer running time. <br>3、Built?in rechargeable lithium ion battery, which can be recharged repeatedly, which is more environmentally friendly. <br>4、The perfect companion for smartphones, making typing, chatting and gaming easier than ever. <br>5、Fit for Phone4, IOS Tablet 1 2 AIR, Android devices, meet your different demands.The device must have built?in Bluetooth <br>The mobile operating system should be one of the following: <br>for Google, Android, OS <br>for Windows Mobile (6.0 and higher) operating system <br>for Nokia Sysbian S60 (V3.0 and higher) operating system <br>for IOS1 x Bluetooth Keyboard<p>1 x USB Cable</p><p>1 x Instruction</p>