High definition Bluetooth 2.1 audio wireless connectivity with seamless streaming and 4 hours of playtime. -Universal compatibility with Android and iPhone tablets, smartphones, iPods, MP3, MP4 and other Bluetooth enabled digital players. -Easy access to Handfree Talking / Volume up / Volume down / fast forward (skip) / Backward / Pause / Play / Power buttons. -Water resistant loud speaker and built-in mic for both outdoor and indoor use. Stylish, portable and powerfulWhy carry cheap-looking pieces of rubber/plastic coated bulky speakers, when you can have a contemporary, portable and Powerful 3W output speaker and a stylish design. Multiple usesDo not be deceived by its small size. This small gadget is a powerhouse of features - use it to play music from your cell phone or as a hands-free speakerphone for answering calls (in-built microphone) Technical Parameters: Output power: 3 w 4 ohms Frequency response: 68 Hz ~ 20 KHZUSB version:USB 2.0 compatible with 1.1Charging time: standard DC5V - more than 500 ma power charging about 2 ~ 2.5 hoursAudio playback time: audio medium volume 4 hoursNote: 1. If the battery replacement improper explosion danger, can only use the same type or equivalent type of battery to replace2. Battery may not be exposed to such as sunlight, fire or similar overheating in the environmentOnly used between 2000 m below the regional securityOnly apply to the safe use of the tropical climate conditions Package : 1 x Bluetooth speaker1 x portable buckle1 x USB cable1 x 3.5mm audio cable1 x User manual