Mobile Key Android v 1. 1. 2 Features. Ability to make Android phone unlocking the Xeeder Bluetooth Hotel locks. Store more than 1 room key per hotel. Store 10 hotels keys available. Android version required: later than v4. 4. 3/ Bluetooth version at least v4. 0. Bluetooth v4. 0 mobile is the required for working well Xeeder mobile key App. Ble 4.