Features: 92-key QWERTY keyboard with backlight, convenient to use at night 2.4GHz wireless connection method With innovative screen scroll design Automatic sleep and wake-up function of the keyboard Compatible 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 size With innovative design of mouse function, you can use touch pad or air mouse to realize traditional mouse features Ergonomic design, perfect shape The ergonomic handheld design is easy to carry and operate Built-in 300mAh lithium ion battery, standby time up to 48 hours Interface Type: USB Type: 2.4GHz Wireless Package Included: 1 x H9 Backlight Air Mouse 1 x USB Cable 1 x Lithium Battery 1 x USB Receiver