This Bluetooth speaker can be a best choice for parties, outdoor camps, trip or even indoors, does not take up a lot of space and there is a lanyard that can be easily hung on a backpack etc. Imprint your logo and promote your brand. It can TWS connect to mobile phone to take selfies; Bluetooth connection to call; Insert TF card to play; Volume increase or reduce; Next or back. Complies with CE, FCC, RoHS.