Indoor/outdoor waterproof 10 watt Bluetooth® speaker,IPX7 rating - waterproof,Approx 15 hours of playtime,Approx 2-3 hours charging time,TWS capability allows to pair 2 speakers with same device,Built-in mic for hands-free calls,Easy-carrying elastic loop,Features a TF card slot,Connect via Bluetooth® 5.0 technology or AUX line-in cable,Includes micro USB charging cable, AUX cable, and user manual.,Certifications: BQB, MSDS, UN38.3, FCC