BT 3.0 Numeric Keyboard for PC Notebooks for Windows for Android for iOS Description: : Digital keyboard, connection, simple design, practical and convenient : Textured metal base plate, keyboard with switching keys, 15° to relieve fatigue. Widely compatible: compatible with supporting devices, Android laptops/systems, desktops, tablets, etc. : Charging time 1-2 hours, when fully charged can last up to 2 weeks, with LED indicator Portable keyboard: narrow keyboard, plug and play, no additional settings, you can easily fit it in any backpack, bag or purse. Specification: Number of keys: 34 keys Version: 3.0 Distance: 10 meters Keyboard life: (number of keys) 5 million times Response Rate: 5ms Operating Current/: 2mA/3,7V Charging time: 2 hours Usage time: 50h Time > 2 months Material: ABS PP Support system: for, for iOS, for Android Size Chart: 14,6 cm x 11,4 cm x 0,9 cm/5,75 inch x 4,49 inch x 0,35 inch The package includes: 1 piece numeric keypad 1 piece of data lineage 1 piece instruction