Specifications:
IPX7 waterproof
Chip: AC6925B 
Bluetooth version: V5.0
Output power: 5W
Battery capacity: 3.7V/1800mAh
Size: 96*96*43MM
Net weight: 200g
Wireless operation range：10M（Without obstacles)
Speaker: 40mm
Profiles supported：AVRCP 1.0, GAVDP 1.0, AVDTP 1.0, A2DP 1.0, Profile 1.5, Headset Profile v1.1
SNR:≥65dB
Input power: DC 5V /1A
Speaker frequency: 80Hz-20kHz
Play time: 15H
Talk time: 15H 
Charging time: 3.5H
Features:
1.Mini body with 4W output, no distortion.
2.Built-in 1800mAh ultra-large capacity rechargeable battery, can work for over 15 hours on a single charge.
3.Triangular shape with fabric speaker cover, supreme and exquisite.
4.Comfortable mountaineering buckle combined with handheld size, for easy portable
5.IPX7 waterproof