1、 the bluetooth version: V3.0 V2.1 + EDR compatibility、 V2.1、 V1.12、 the chipset: CSR61453、 the transmission power: Class24、 the transmission frequency: 2.4 GHz5、 transmission distance、 more than 10 meters6、 and the talking time: 4 ~ 6 hours7、 the standby time: 120 hours8、 support the file format: A2DP music playback、 headphones and hands-free modeProduct features1、 fashionable and generous2、 support all bluetooth devices and mobile phones3、 at the same time connect 2 mobile phone4、 A2DP、 support the music play5、 the volume + - key、 volume6、 support single ear models and extended headphones7、 imported chip、 high quality8、 then hang up、 refused to telephone、 code at the end of the callback