Main Features:1, Splashproof / Shockproof / Dustproof functions make it suitable for outdoors and shower2, Easy playback control and volume control by pressing and hold volume up and down buttons3, While work with AUX, it is easy to listen to the sound from PC, iPod, iPhone, MP3, MP44, Connect an iPod or MP3 player, CD player and laptop with 3.5mm auxiliary cable5, With the lanyard, easily fit it into your bag or pocket and make your travel more convenient6, Built-in 1500mAh rechargeable battery, enable the playtime up to 8 - 10 hours7, Bluetooth 3.0 connection for exciting wireless playback8, NFC technology for easy and instant connection (if your bluetooth audio device has NFC function)Model: S7Design: Mini,PortableCompatible with: iPhone,iPod,Laptop,Mobile phone,MP3,MP4,MP5,PC,Tablet PC,TF/Micro SD CardSupports: Bluetooth,FM,Hands-free Calls,Microphone,NFC,TF Card Music Playing,Volume Control,WaterproofFunctions: AUX FunctionConnection: WirelessInterface: 3.5mm Audio,Micro USB,TF Card SlotAudio Source: Bluetooth Enabled Devices,Electronic Products with 3.5mm Plug,TF/Micro SD CardMaterial: PlasticBluetooth version: V4.0Audio File Format: APE,FLAC,MP3,WAV,WMATransmission Distance: W/O obstacles 10mSpeaker Impedance: 4 ohmPower Output: 3WS/N: More than 60dBFM Radio Frequency: 87.5-108MHzSupport O.S: Linux,Mac OS,Windows 2000,Windows 7,Windows 98,Windows 98SE,Windows ME,Windows Vista,Windows XPPower Source: USBCharging time: 3-4 HoursLasting Time: 8-10 HoursBattery Capacity: 1500mAh