Little Cannon Bluetooth Audio

Made of light aluminum alloy. It uses a cicada membrane sound cavity and a custom metal diaphragm to release a pleasant sound without noise. It is compatible with most Bluetooth devices, mobile phones, tablets, etc. Easy to use and is made of Delicate touch, small size, easy to carry, support card insertion, multi-color optional, logo can also be customized, it can be used as a promotional gift. 2.7″ L x 2.7″ W x 1.5″ H