KADUN KD-384BT metal magnetic handfree wireless bluetooth neckband earphone With SD TF card slot 


Brand KADUN
Product Name Neckband Bluetooth Wireless Earphone
Bluetooth Version V5.0
Drive Unit 10mm
Battery 130mAh
Charging Time 1 Hours
Music Time 7 Hours (Max Volume)
Support protocol HSP/HFP/A2DP/AVRCP
Bluetooth Frequency 2.400GH-z-2.480GH-z
Transmission Distance 10m