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