Sannysis(TM) Wireless Keyboard 2.4G Remote Control USB Receiver for Android Smart TV BOX HTPC Material: Plastic & Silicone Interface: USB2.0 Applicable to: Smart TV, Android TV box, mini PC, HTPC. 2.4G transmission up to 10m. Bluetooth Version: No Supports System: Linux, Android 2.x, Android 4.x, Win 2000, Win vista, Win7 32, Win7 64, Win8 32, Win8 64, MAC OS X. Product Size: 13.5 * 3.7 * 1.47cm / 5.31 * 1.46 * 0.58in