--Bluetooth version: 4.1
--Built in Microphone, Hands free conversation
--Transmit range : 10m
--Frequency rate: 2.402GHZ-2. 480GHZ
--Charging time: 2 hours
--Operating Time: 8-10 hours
--Automatic switch-over between calls and music
--Foldable
--Mint green color
In the box: User guide, travel bag AUX and charging cables