UiiSii BN28 Dual Driver Neckband Bluetooth Earphone

Specification:
Brand: UiiSii
Model: BN28
Bluetooth Version: 5.3
Bluetooth Chip: BK3266
Wearing Style: Neckband
Low Latency: 35ms
Battery Capacity: 150mAh
Playtime/Talk Time: About 20/15 Hours
Standby Time: About 320 Hours
Speaker Size: 6mm
Resistance: 8Ω
Frequency Range: 20–20000Hz
Sensitivity: 104±3dB
Charging Time: About 2 Hours
Transmission Range: 10m
Water Resistant: IPX5