Waterproof，Dustproof， Anti-scratch， Shockproof，High temperature Resistant Speaker;Metal Hook Loop for Easy Attachment to Chain， Wire， Karabiner， Clip， etc.Built-in Li-ion battery means you're free to place your speaker almost anywhere you please， plus the battery can be easily charged via a standard micro USB connection;Stylish and exquisite appearance， which is convenient to carry，With it you can enjoy music anytime and anywhere.NFC Technology (Near Field Communication) for easy and instant pairing;HiFi and clear loud sound output;Built in microphone allows you to answer calls while listening to music.IPX4 Grade Waterproof， excellent for Outdoor Sport and exercise and Travel;English Voice Prompt function;Used as 3600MAH power bank can charge your phone or other device in emergency.Note:Do not soak in water; It only support water mist- proof;NFC function only for android.Bluetooth V4.0 Waterproof +NFC Speaker+Power Bank1.Waterproof，Dustproof， Anti-scratch， Shockproof，High temperature Resistant Speaker2.Stylish and exquisite appearance， which is convenient to carry，With it you can enjoy music anytime and anywhere3.NFC Technology (Near Field Communication，Only for Android) for easy and instant pairing4.HiFi and clear loud sound output5.Built in microphone allows you to answer calls while listening to music6.IPX4 Grade Waterproof， excellent for Outdoor Sport and exercise and Travel7.English Voice Prompt function8.Used as 3600MAH power bank can charge your phone or other device in emergency9.Note:Do not soak in water! It only support water mist- proof!Specifications:1.Bluetooth Resolution:CSR 4.02.Water resistance:IPX43.Output Power:3Wx24.Frequency Response:20Hz~20kHz5.Battery Li-ion:3.7V6.Battery Capacity:3600mAh7.Dimensions:66mm*66mm*170mm8.Audio input:3.5mm Jack Cable and power connector9.On/Off/Bluetooth switch10.Power lndicator Light:Blue lights11.Range:upto 10 metres open fieldPackage contents:1* Portable Bluetooth Speaker1* 3.5mm audio cable1* Micro USB charging cable1* Metal Hook Loop