KwikSafety IPX7 Shockproof Dustproof Waterproof Rugged Portable Bluetooth Speaker with Built-in Mic and HandsFree Speakerphone for Travel, Work, Hiking, Beach, Pool - Great for iPhones & SmartPhones IPX7- This is for full water splashdown. The speaker may be dropped in water up to 3 feet or 1 meter for up to 30 minutes and still function properly. This Speaker is 5W, most speakers of this size are 3W.Loudspeaker: 5W SNR  3db. 115 decibels when max volume 8 hours of battery life. USB charging takes 2-3 hours. Hands free call mode. Built in speakerphone. Answer calls using voice commands, no need to disrupt your activity. NFC wireless check-in creates easy pairing and easy on/off with NFC supported devices