DT-B660 Bluetooth V4.1 SpeakerIPX7 Waterproof Built-in Rechargeable Battery for Outdoor Sports Bicycling Traveling<br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />Description:<br />The DT-B660 Bluetooth V4.1 Speaker offers great quality sound with Bluetooth V4.1 technology. With built-in battery which can support more than 3 hours， makes you have enough time to play music. With the ultra-compact size and the soft touch rubber design， it can be easily fitted into a backpack， suitcase， or a travel bag. It is ideal for personal usage， indoor party， outdoor BBQ or picnic with friends and family.<br /><br />Main Features:<br />● With Bluetooth V4.1 wireless technology， high-speed data transmission， strong anti-interference， it can be used indoors or outdoors.<br />● IPX7 waterproof， crash and dust-resistant function.<br />● Built-in lithium battery to meet the needs of all-weather outdoor music player.<br />● Features with volume control and LED indicator light， convenient to operate.<br />● Built-in microphone for hands-free calls， free your hands and keep your safety in driving.<br /><br />    Specifications<br />Primary Features<br />	 Model: DT-B660                                                  <br />                        Design: Portable                                                  <br />                        Compatible with: Tablet PC，PC，Mobile phone，Laptop                                                  <br />                        Supports: Bluetooth，Microphone，Hands-free Calls，Volume Control，Waterproof                                                  <br />                        Functions: Songs Track                                                  <br />                        Connection: Wireless                                                  <br />                        Interface: Microphone，Micro USB                                                  <br />                        Audio Source: Bluetooth Enabled Devices                                                  <br />                        Material: Plastic                                                  <br />                        Color: Pink，Black，Blue，Green，Orange，Army green                                                	<br />Technical Parameters<br />	 Bluetooth version: Bluetooth 4.1                                                  <br />                        Protocol: A2DP，AVRCP，HSP，HFP                                                  <br />                        Transmission Distance: W/O obstacles ≥10m                                                  <br />                        Speaker Impedance: 3 ohm                                                  <br />                        Power Output: 3 W                                                  <br />                        Standby time: 100 Hours                                                  <br />                        Freq: 150Hz-20KHz                                                  <br />                        S/N: More than 85dB                                                	<br />Other Parameters<br />	 Power Source: USB                                                  <br />                        Speaker Accommodation: Button                                                  <br />                        Charging time: 2 Hours                                                  <br />                        Battery Capacity: 300mAh                                                	<br />Dimension and Weight<br />	 Product weight: 0.074KG                                                  <br />                        Package weight: 0.158 KG                                                  <br />                        Product size (L x W x H): 4.20 x 4.20 x 4.20 cm / 1.65 x 1.65 x 1.65 inches                                                  <br />                        Package size (L x W x H): 7.00 x 7.00 x 5.00 cm / 2.76 x 2.76 x 1.97 inches                                                	<br />Package Contents<br />	 Package Contents: 1 x DT-B660 Bluetooth V4.1 Speaker， 1 x USB Cable， 1 x English Manual                                                	<br /><br /><br /><br />                                            <br /><br /><br /><br /><br /><br /><br />                                                <br />