The Spinner Finger is Built in Bluetooth speaker, connect the phone Bluetooth, play favorite music and enjoy more fun while playing the spinner,USB Rechargeable With built in battery and charged through usb port, it can play for 6 hours. It is easy to carry, small, simple, discrete and fun, also effective for focus and deep thought.Features:1.Special Function: LED Glowing and Bluetooth Speaker Function2.Weight: 40g3.Bluetooth Speaker: Yes4.Connection type: bluetooth connection5.Bluetooth protocol: 4.06.Effective distance: Within 5meters10.lnput:5v/0.1A; Loudspeaker Output:1W11.Capacity:70mAh