Bluetooth V4.0 Waterproof +NFC Speaker+Power Bank 1.Waterproof,Dustproof, Anti-scratch, Shockproof,High temperature Resistant Speaker 2.Stylish and exquisite appearance, which is convenient to carry,With it you can enjoy music anytime and anywhere 3.NFC Technology (Near Field Communication,Only for Android) for easy and instant pairing 4.HiFi and clear loud sound output 5.Built in microphone allows you to answer calls while listening to music 6.IPX4 Grade Waterproof, excellent for Outdoor Sport and exercise and Travel 7.English Voice Prompt function 8.Used as 3600MAH power bank can charge your phone or other device in emergency 9.Note:Do not soak in water! It only support water mist- proof! 10. 8 Hours Playtime Specifications: 1.Bluetooth Resolution:CSR 4.0 2.Water resistance:IPX4 3.Output Power:5Wx2 4.Frequency Response:20Hz~20kHz 5.Battery Li-ion:3.7V 6.Dimensions:66mm*66mm*170mm 7.Audio input:3.5mm Jack Cable and power connector 8.On/Off/Bluetooth switch 9.Power lndicator Light:Blue lights 10.Range:upto 10 metres open field Package: 1* Portable Bluetooth Speaker 1* 3.5mm audio cable 1* Micro USB charging cable 1* Metal Hook Loop