It is made of lightweight aluminum alloy with a matte finish for a nice touch and an attractive metallic sheen. It uses a cicada cavity and a custom metal diaphragm to release a pleasing sound. Bluetooth version 3.0 is compatible with most phones, tablets, computers and car devices. It is small and easy to carry, supports memory card and U disk for multimedia playback, and is an ideal gift for product promotion. There are a variety of colors to choose from, welcome to customize. 2 11/16'' D x 2 1/16" H

Material: Metal

Imprint Area (LxW): 1 9/16'' L x 1'' W

Prod Dimention: 2 11/16'' D x 2 1/16" H

Packing: 1pcs/box

Units/Ctn: 100 pcs/ctn

Carton Dimention: 16'' L x 16 W x 10 4/5'' H

Weight/Ctn (lbs): 28.6 lbs

Production Time: 15 Days

Rush Service Time: 12 Days