... bluetooth keyboard is a friendly companion for your smartphone, PC, PS3. It can be applied in Apple iPhone, iPad, smartphone ... ect.Features:Ideal for typing emails, chat, and playing games.Pocket size,sleek and slim designExtended battery life for hours ... )RF output power: 4dbm maximumOperating Distance: 0 - 10 mBluetooth Version: 2.0Battery Duration:Constantly use: about 50 hoursStandby: 400 hoursPower ...