Mini folding bluetooth keyboard portable wireless keyboard-thin keyboard product information: Name: Foldable Bluetooth keyboard Color: black, white Main material: ABS plastic Number of keys: 67 keys Interface standard: Bluetooth 3.0 Polymer battery specifications: 302323MAH Working voltage: 3.0-4.2V Button life times: 3 million clicks Effective use distance: 10 meters Additional accessories: manual + color box + charging cable Combined size: 15*8.4*1.5cm Expanded size: 31.5*8.4*0.5cm Bare metal weight: 0.14KG Packing box size: 17.8*10.8*3.5mm Applicable occasions: use by yourself, send, give gifts, present promotions for business activities, as prizes, employee benefits, etc. System support: support, Android, system, suitable for mobile phones and lighter tablets