Package Dimensions:17 x 13 x 3 cm; 230 Grams Hardware Platform:Android/iOS Operating System:Android Are Batteries Included:No Item Weight:230 g Guaranteed software updates until:unknown Specification Item Type: Mini Numeric Keypad Number of Keys: 35 Keys Working Distance: Approx. 10meter/ 32. 8ft Input Voltage: 3. 3V Button Life: 15 Million times Battery Capacity: 250mah Package Including 1 x Keypad 1 x User Manual 1 x 2. 4G Receiver About this item Wireless numeric keypad come with indicator light, working status is clear at a glance 35key numeric keyboard, add comma key, which will meet you needs of numeric input The product support for Microsoft/ Android/ OS X system, come with ultra slim shape This keypad is plug and play with simple operation, mini portable size is easy to carry This mini keypad adopt 2. 4G wireless connection, easy for you to use anytime and anywhere See more product details Wireless numeric keypad come with indicator light, working status is clear at a glance 35key numeric keyboard, add comma key, which will meet you needs of numeric input The product support for Microsoft/ Android/ OS X system, come with ultra slim shape This keypad is plug and play with simple operation, mini portable size is easy to carry This mini keypad adopt 2. 4G wireless connection, easy for you to use anytime and anywhere