Model: bk3266
Bluetooth chipset：v5.0
Bluetooth distance: 10M
Speaker size: Φ10MM
Support: HSP, HFP, A2DP, AVRCP
Resistance: 16 ohm
Sensitivity: 95+-3dB
Frequency: 20Hz～20KHz
Battery：140mah
Charging time: <1H
Music time：about 10hrs
Standby time: about 140hrs
Color: black,black=red
BT013 Magnetic Wireless Bluetooth Neckband Earphone with silicon earhook
Order Type:OEM
type：BT-013