Mini Bluetooth SpeakerPortable speaker is compact in size, Made of a 4mm thick high-quality stainless steel shell, with a beautiful and flawless appearance, It is also convenient to put it in a pocket or backpack for travel and other outdoor activities. HiFi Stereo Sound The portable speaker has a subwoofer and loud HD surround sound, which can be heard anywhere in the room and provides you with pleasing background music in the form of a cube, which is very suitable for conference calls,bedrooms,studies,Car,travel,outdoor,etc. Bluetooth 5.0 Connection Bluetooth speakers can connect to devices from a distance of 33 feet. The remaining power of the wireless speaker will show on the phone. Speaker will reconnect to the last device automatically after the first connection within just 3 seconds.The speaker will shut down when bluetooth is disconnected for 10 minutes. Multiple playback methods The portable speaker supports bluetooth and 3.5mm AUX(cable included) connection to connect with iOS / Android devices, smartphones, laptops, desktop computers wirelessly and wiredly. Built-in microphone enables hands-free calls. Support mobile storage TF card(not included) to 32G,thousands of songs to enjoy at ease. 12H playback time Equipped with a 600 mAh large-capacity battery, One charge (1-2 hours) can ensure continuous playback for 8 to 12 hours. Enjoy music day and night, never stop.