Splash Proof / Shock proof / Dust proof functions .. make it suitable for outdoors! W-KING S7 Portable NFC Wireless Bluetooth 4.0 Speaker features unique rugged square design, support multiple perspectives, is very popular by most people. Made of world's top materials with Splash proof & Shockproof & Dust proof & function. High-definition sound quality, built in full range loudspeakers, will bring you wonderful music enjoyment. The built-in 1500mAh rechargeable battery enables a breakthrough 8-10 hours of playtime so you can jam through a full day and it only takes 3-4 hours for you full charge the speaker. Latest Bluetooth 4.0 Technology - Connect your device in 3 seconds. NFC technology - Tap-to-pair with NFC technology for easy and instant connection (If your Bluetooth audio device has NFC function). So fashionable, stylish and unique design with excellent sound quality effect speaker by the lowest price, you worth it. •Splash proof / Shockproof / Dust proof functions make it suitable for outdoors and shower. •Easy playback control and volume control by pressing and hold volume up and down buttons. •While work with AUX, it is easy to listen to the sound from PC, iPod, iPhone, MP3, MP4. •Connect an iPod or MP3 player, CD player and laptop with 3.5mm auxiliary cable. •With the lanyard, easily fit it into your bag or pocket and make your travel more convenient. •Built-in 1500mAh rechargeable battery, enable the playtime up to 8 - 10 hours. •Bluetooth 3.0 connection for exciting wireless playback. •NFC technology for easy and instant connection (if your Bluetooth audio device has NFC function). Primary Features: Model: S7  Design: Mini,Portable  Compatible with: iPhone,iPod,Laptop,Mobile phone,MP3,MP4,MP5,PC,Tablet PC,TF/Micro SD Card  Supports: Bluetooth,FM,Hands-free Calls,Microphone,NFC,TF Card Music Playing,Volume Control,Waterproof  Functions: AUX Function  Connection: Wireless  Interface: 3.5mm Audio,Micro USB,TF Card Slot  Audio Source: Bluetooth Enabled Devices,Electronic Products with 3.5mm Plug,TF/Micro SD Card  Certificate: CE,FCC  Material: Plastic  Color: Army green Technical Parameters:  Bluetooth version: V4.0  Audio File Format: APE,FLAC,MP3,WAV,WMA  Transmission Distance: W/O obstacles 10m  Speaker Impedance: 4 ohm  Power Output: 3W  S/N: More than 60dB  FM Radio Frequency: 87.5-108MHz Other Parameters: Support O.S: Linux,Mac OS,Windows 2000,Windows 7,Windows 98,Windows 98SE,Windows ME,Windows Vista,Windows XP  Power Source: USB  Charging time: 3-4 Hours  Lasting Time: 8-10 Hours  Battery Capacity: 1500mAh