Advanced 4.1 technology provides stutter-free wireless music streaming and seamless high clarity audio</br>SF470 sound, the Bluetooth speaker performance is spectacular, it has excellent clarity and you can hear the separation between instruments and vocals as if they're coming out of different speakers. The bass is not earth shattering but it does sound good and punchy for a speaker of this size and with no distortions at high volumes</br>IPX65 waterproof level make sure your best enjoying on hiking, sporting, traveling and on beach as well! A touch friendly silicone cover, more safe when dropped or falling down, so safe and surf!</br>Special Forces-SF470 is a compact Bluetooth speaker that can be wirelessly connected to Bluetooth devices such as smartphones, tablets and computers to play back any music collection stored on them. Thanks to the powerful battery and passive radiator, the system delivers full stereo sound. Different from other mains supply, it can support about 6 to8 hours' play time and is the perfect companion for you hang around in the park, while camping or on the beach.</br>The process control helps you get rid of complicated connections and wiring distance constraints. Therefore, users can enjoy high-quality music anytime and anywhere.</br></br>Product Description</br></br>SPECIFICATIONS   1. IP65 Waterproof Rating. Dustproof and shockproof function.   2. Can be fixated on the handlebars of the bicycle through the brackets.   3. 3.5mm Audio Cable or Wirelessly with Bluetooth.   4. Support hands-free function.   5. 2000mAh Rechargeable battery and 6+ hours play time.     UNIQUE SELLING POINTS   1. Transmission Distance:≤10m   2. Support calls hands-free function   3. Speaker unit: diameter 40mm, inner magnetic 5W*2   4. 3.5mm Audio input cable connection or wireless Bluetooth connection   5. Build-in rechargeable Battery:3.7V/2000mAh   6. Charging time:3-4 hours   7. Working time: 6-8 hours   8. Water Resistant:IP65   9. S/N ratio:≥80dB   10. Size:173x73x49 mm   11. Weight:425g   12. Color: Orange    CONNECT TO MOBILE PHONES/TABLET PCs/COMPUTERS   1. Activate your phone's Bluetooth.   2. Go to your phone's Bluetooth settings , scan for new Bluetooth   devices.   3. Upon device found (Special Forces-SF470), click the device   name and pair with it.   4. If your phone ask for pairing code , please enter "0000" and   confirm it.   5. After successful pairing, The speaker will make a prompt sound   and the LED light turns blue.   03       ACCESSORIES   1x Special Forces-SF470 Bluetooth Speaker   1x Bicycle Mount   1x User Manual   1x USB Charging Cable   1x AUX 3.5mm Audio Cable</br><br/>http://www.amazon.com/gp/product/B01HI6TKB8