1. Convenient volume knob: The exquisite and compact volume knob is combined with the on/off switch to provide you with convenient and precise volume adjustment.2. Simple control: control your voice, play, pause and skip songs, control volume, select input, change station, etc.3. Long social time: It can be played for multiple hours per charge, and can be paired with most Bluetooth-enabled devices. It is light and convenient to put in a pocket or a backpack. It is a true ultra-portable mini Bluetooth speaker, which is also a free gift. A great gift for friends or family4. Multiple connection options: For those devices that do not have Bluetooth, connect to other devices through lines or plug-in cards.5. Suitable for: adult , memory timer function, portable, home office travel, USB-powered PC, TV, notebook computer and smart phone gathering on various stages. Connect them all on your device to add fun to your next party.