Support Agreement: AVDTP1.3 / AVDTP1.4 / GVRADP1.3 / A2DP1.3/HFP1.7/HSP1.2/AVRCP1.6/SPP1.2/GATT1.0
The signal is strong and the bass is excellent.The blueteeth range: 10m / 3.6Ft / 360 degree.
Blueteeth 5.0 Binaural Calls Both ears can be used separately
2000mAh large capacity charging warehouse
Dual host open cover automatic boot pairing master-slave switch.LED digital display screen tou,ch operation