Features 92 key QWERTY keyboard with backlight convenient to use at night2 4GHz wireless connection methodWith innovative screen scroll designAutomatic sleep and wake up function of the keyboardCompatible with HD device USB interface Android OS HD player TV STB DVD VCD CD device Multi functional mini keyboard with touchpad audio chat smart and portable sizeWith innovative design of mouse function you can use touch pad or air mouse to realize traditional mouse featuresErgonomic design perfect shape The ergonomic handheld design is easy to carry and operateBuilt in 300mAh lithium ion battery standby time up to 48 hoursInterface Type USB Type 2 4GHz Wireless Package Included 1 x H9 Backlight Air Mouse1 x USB Cable1 x Lithium Battery1 x USB Receiver