81 Keys Ultra Slim Thin Bluetooth Keyboard with Touch Pad for Android 3.0 Windows XP 7 8

Features: Thickness only 0.8cm / 0.3in, ultra slim and ultra mini, convenient for carrying. Bluetooth connection, enjoy 10.0m / 32.8ft long-range wireless control. Low noise, avoiding disturbing other people. High-quality workmanship and exquisite detail, all for bringing user pleasant experience.Specifications: Keys quantity: 81 Bluetooth version: 3.0 Interface: Micro USB Modulation mode: GFSK Support system: For Android 3.0, for Windows XP / 7 / 8 and above Control distance: ＜10m Working voltage: 3.0-4.2V Working current: ＜10mA Stand-by mode current: ＜0.8mA Sleeping mode current: ＜0.3mA Charging current: ≤250mA Stand-by time: ＞3 days Battery capacity: 230mA Charging time: ＜3 hours Sustainable working time: ≥50 hours Color: Black Material: ABS Item size: 25.8 * 17.0 * 0.8cm / 10.2 * 6.7 * 0.3in (L * W * H) Item weight: 257.0g / 9.1oz Total size: 29.0 * 18.0 * 1.2 / 11.4 * 7.1 * 0.5in (L * W * H) Total weight: 335.0g / 11.8ozUser tips: Shortcut keys is different in different system.Package list: 1 * Keyboard 1 * USB charging cable 1 * User manual (English)