Bluetooth 4.1 supporting Echo Dot Using WiFi RF technology to finish connect connection distance up to 10M (33 ft) with strong and stable singal. Compatible with all Bluetooth-enabled devices and Echo Dot supporting TF card and AUX play.</br>High Quality Clear Sound 2 x 4 watts bass impedance speakers larger than the normal 10 watts. Less than 1% harmonic distortion ensures clarity and fidelity. Stereo audio and loud sound will make you feel like you're on the scene.</br>Durable Battery and Excellent Microphone Built-in 1500mAh high capacity lithium-ion rechargeable battery playing music continuously for up to a full 12 hours. Built-in HD noise-reducing microphone supports clear hands-free calls.</br>IPX4 Waterproof and Tiny Portable Size IPX4 rating speaker can resist gentle water spray & splash. 5.7 x 1.8 inches appearance and 11.4 ounces weight makes this spearker portable. You just tuck it into your bag and take it to anywhere.</br>Shockproof and Lastest NFC Technology Up and down elastic pads of silicone reduce the audio loss and prevent the drop damage. Equipped with NFC connection function?? this speaker gives you an extra fast connection choice.</br></br>Product Description</br></br><b>Zoweetek Portable Bluetooth Speaker Designed High-end and classic design</b><br> <br> <b>What makes it so EXCELLENT:</b><br> ? Noise Blackout Extreme<br> ? Output Power: 8W<br> ? Frequency Response: 60Hz-20kHz<br> ? S/N: 75dB<br> ? Lithium battery ??1500 mAh<br> ? Talking time: 8-10 hours<br>? Music time : 12-15 hours<br> ? Charge time: 2-3 hours<br> ? Charge Port: Micro USB<br> ? Unit size:145*45*55 mm<br> ? Unit weight: 320g<br> ? Package method: whitebox<br> <br> <b>What makes it so much BETTER:</b><br> ? Two precision acoustic drivers provide very loud?? distortion-free stereo sound in exceptionally high quality??Patentend amplifier IC for strong bass<br> ? "size -portable to carry With Waterproof Function-IPX4??Power packed with loud sound to entertain and fill any room?? outdoor gathering?? picnic and p