Bluetooth Headset, Duola 30 Hours Using 90 Days Standby Headphone w/Mic Noise Cancel Bluetooth Earpiece V4.1;

Specifications:

Compatibility: iOS, Android, Windows and other Bluetooth enabled devices
Bluetooth Audio Protocol: A2DP1.2, AVRCP1.4, HFP1.6, HSP1.2, DI1.3
Bluetooth Version: 4.1+ EDR
Signal Distance: Up to 33 feet ( varies from cellular brand )
Continuous Music Play Time: Up to 24 hours (depends on volume and audio content)
Continuous Talk Time: Up to 30 hours
Charging Time: 4H
Standby Time: 90 days
Size: 2 x 1.7 x 1.1 in
Charging Port: Micro USB
Earbuds Net Weight: 0.45 oz

Change Prompts Language

Press both "V+" and "V1" simultaneously after powering on the headset to change the language.