... Mini keyboard 4.2.4GHz & bluetooth 5.Eboard for Iphone/ 4S or Ipad 1.Technology 2.4G / Bluetooth wireless technology ... 3.Product Specifications : 3.1 2.4G / Bluetooth wireless technology transmission, longest distance up to 15 meters.3 ... Bluetooth version is compatible Android, Apple and other systems for smart phones, computers,car PC, tablet, etc. Portable Eboard Smart-handheld Wireless Keyboard ...