Operating distance: 33 ft.

Battery capacity: 400mA.

Charge voltage/current: DC 5V/300mA.

Standby time: 400 hours.

Size:12.5cm*8cm.

Here are the Full Specs on the Smart TV/Android TV Remote Keyboard:

BLUETOOTH Wireless Keyboard and Dual Mode IR Learning Remote.

Multi Language Control.

Multi-Touch touchpad.

Scroll Bar.

One Button, Convenient Operation in Horizontal and Vertical Modes.

Full QWERTY keyboard, Full Function Keys.

IR learning, it can quickly learn original code from other home electrics and appliances.

Rechargeable Li-ion Batteries: Last up to Two Weeks Between Charges.

Charges Fully in About Two (2) Hours.

BLUETOOTH wireless: Enjoy long-range Wireless.

Control from up to 33 Feet Away.

Backlighting: Works Great In Low Light Conditions.

Works With: Windows (all).

Linux (Debian-3.1, Redhat-9.0, Ubuntu-8.10, Fedora-7.0tested).

DOS, BOIS, Android PC OS, IOS, Mac. OS.