Inhouse product
Features:
Outdoor waterproof sound, waterproof, drop-proof, dustproof
Support wireless hands-free function, one answering call while riding a bicycle
AUX audio link, 3.5mm audio connection
V4.0 Bluetooth, working range: 10 meters, total power: 3w, 8 - 10 hours of music playback time, waterproof, drop-proof and dustproof