S77 Wireless Bluetooth Speaker Waterproof Sports sound box Outdoor Portable subwoofer Outdoor Clear Stereo Music surround Explain: Bluetooth version: v5.0 Model: Zealot S77 Battery capacity: 1800mAh (built in) Endurance: about 5~ 6 hours Charging time: about 2-3 hours Number of speakers: 1 Speaker: 5W What we offer: Portable Bluetooth speaker * 1 Charging Cable * 1 Audio Line*1 Strap*1 User manual * 1 Portable bluetooth speaker S77 bluetooth speaker adopt full-frequency loudspeaker design no sound breaking, no hissing, bass output in a natural and balanced manner, strong low frequency full of surging charm Personalized portable Bluetooth speaker it provides rich sound and excellent bass far beyond its volume, and the sound effect is full and round. 360Surround Sound Small volume high volume bluetooth speaker When traveling outdoors, it will be used without the charger for a long time.S77 bluetooth speaker has a 1800mAh battery capacity, so you don' thave to worry about going out, no matter where you are you don thave to miss the music. Braided lanyard design, durable and easy to pick up the bluetooth speaker Can be beng in a backpack at will lightand portable, with music. IPX7 waterproof bluetooth speaker Bluetooth 5.0 wireless speaker TWS bluetooth speaker surround sound The bluetooth speaker has a built-in noise-cancelling microphone with strong sound reception ability No need to face the phone, the phone voice is more than enough. Multiple playback modes, not only Bluetooth.