It features Bluetooth 4.0 and long distances up to 10m for use
Suitable for iOS and for Android. It can be used in mobile phones
With portable hanging hole design, it can hang on the key chain
It is lightweight, portable and easy to carry
Specification:
Bluetooth version: 4.0
Frequency: 2.4Hz~2.4835GHz
Effective distance: 10m (30ft)
Battery model: CR2032
Size: 50mm x 33mm x 10.5mm