Description: : Digital keyboard, connection, simple design, practical and convenient :Textured metal base plate, switch keycaps keyboard,15° to alleviate fatigue. Widely Compatible: compatible for enabled devices, for Windows system/for Android system laptops, PCs,tablet ect. Rechargeable :1-2 hours charging time ,after a full charging can last up to 2 weeks,with LED indicator Portable Keypad:Slim Keypad,plug and play, no additional settings,you can easily fit it into any backpack,bag,or purse. Specification: Number of keys: 34 keys version: 3.0 transmission distance: 10 meters Keyboard life: (number of keys) 5 million times Response speed: 5ms Working current/voltage: 2mA/3.7V Charging time: 2 hours Use time: 50h Standby time: >2 months Material: ABS PP Support system: for Windows, for iOS, for Android Size Chart: 14.6cm x 11.4cm x 0.9cm/5.75inch x 4.49inch x 0.35inch Package Includes: 1 Piece Numeric Keypad 1 Piece Data Line 1 Piece Manual Note: 1.Please allow 1-3 cm error due to manual measurement, thanks. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand, thank you. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.