METAL BLUETOOTH SPEAKER _ Great sound and durabl; Aviation aluminum alloy seamless unity body cut by CNC metallic with good handle feel accord to special surface treatment made it with high-end look and durably; on the bottom with silicone base for shock absorption;Greater sound quality enjoy an impressively crystal clear sound quality realized through a noise-isolating systemdeep bass and louder volume provide you a full-range listening experience;</br> ULTRA-PORTABLE _ Ultra-compact design and light weight (only 3.15 x 3.15 x 1.2 inch 4.8oz ); small portable size easy to fit in your pocket and hang on your backpack or baggageeffortlessly enhance your music on the go.</br>" BUILT-IN RECHARGEABLE BATTERY / MICROPHONE _ Up to 4 - 5 hours of playing time on full charge and with microphone support hands free calls (answerreject and end calls) for Apple iPhone 7 / 6s / 6s Plus / 6 / 6 Plus / 5s / 5c / 5 / 4s / 4 iPad Pro / Mini 2 / Mini / 4 / 3 Samsung Galaxy S6 / S5 / S4 / S3 / Note 4 / 3 LG Sony Moto?? HTC M9 / M8?? iPhone?? iPad?? MacBook ??Samsung??LG??Sony??HUAWEI ect;</br>? ADVANCED BLUETOOTH TECHNOLOGY _ High definition Bluetooth 3.0+EDR audio wireless connectivity with seamless streaming?? easy and fast to pair with all Bluetooth-enabled devices and outstanding connection range up to 30 feet.</br>? EASY TO USE _ With multifunction button for power on/off ??play/pause the music and answer/reject/end calls;MONEY BACK GUARANTEE : One year Warranty?? 60-day money back guarantee?? no questions asked. We want our customers to be 100% happy</br></br>Product Description</br></br><b>Specifications:</b><br> Bluetooth Version: V3.0+EDR<br> Interface Type:USB<br> Loudspeaker Output:3W<br> Sensitivity:400mV <br> Playback Function:MP3<br> Material:Luxury Metalwork<br> Transmi