UiiSii BN90 Quad Driver Waterproof Bluetooth Headphones

4 dynamic + 4 balanced armature unit, the balanced armature is responsible for high frequency, the dynamic is responsible for the perfect combination of low frequency complementation
Two 125mAh battery lasts for a long time, with 4 minutes per song, and can listen to more than 500 songs
CSR chip experience HiFi sound quality
The neckband wear is comfortable without the magnetic function
IPX5 waterproof design, no worry sweat and rain
Charging for 2.5 hours, you can listen to songs for 24 hours and standby for 240 hours