Hi,my dear customer, welcome to Isvgxsz, our products are cheap and good quality, price is fair, you can't miss it. Please click on our store, we have many kinds of products, there will be you like and suits you. If you have any questions about your purchase, please feel free to contact me. We provide world-class customer service and try our best to safeguard your consumption rights, so that you can have no worries about your purchase. I wish you can buy the most cost-effective goods you like. A11 Macaron Mini Wireless Bluetooth Speaker Subwoofer USB Card Small Speaker Features: 1. Transmission distance: The transmission distance of Macaron wireless bluetooth speaker is 10 meters, which can provide you with three-dimensional surround type pleasant music anywhere in the home, which is very suitable for work, study, cleaning, etc. 2. Small and portable: Macaron speakers are compact in size and can be carried around. It can be used in office, study, bedroom, kitchen and bathroom. It is also convenient to put it in your pocket or backpack when traveling and other outdoor activities. 3. Multiple playback methods: support Bluetooth, and U disk playback, and the supports a capacity of 32G. The upgraded Bluetooth 4.0 can be easily paired and can be used on mobile phones, iPads, Macs, tablets, laptops and other devices. 4. Lovely design: using plastic materials, the appearance is similar to cylindrical, the hand feels more comfortable, and the appearance is more beautiful. It is the among gifts. 5. Long-lasting playback time: The lithium- battery can ensure continuous playback for 8 hours, and it takes about 1 hour to fully charge. Technical Parameters： Product size: about 2.4*2.4*3in Speaker size: 52mm/36 external magnet Output power: 5w Battery model: 502030 Battery capacity: 300M/AH Signal to noise ratio: ≥70db Frequency response range: 60Hz-15KHz Transmission distance: 10 meters Expansion storage: 4GB Support function: TF/USB/FM/Bluetooth/AUX Product color: black,, blue, green Bluetooth protocol: 4.0 Function: insert card, radio Play time: 8 hours Operation mode: button Play format: MP3, WMA Power supply mode: built-in lithium battery Power supply mode: USB Package include 1pc Bluetooth speaker 1pc USB charging cable