1、Bike Use: Bike Bluetooth speaker has an adjustable elastic closure, cycling specific, lightweight and easy to carry, adding fun to your cycling journey. With its stylish design and superior sound, it's the great portable companion for your riding adventures! 2、Support Pairing: Bike Bluetooth speaker has a pairing function to realize stereo effect and bring a more immersive music experience. This compact, lightweight speaker is easy to carry and does not compromise on sound. 3、FM Radio: Handlebar Bluetooth speaker has built in radio function, easy to listen to the latest news and programs, keep abreast of the world. Ideal for bike rides, picnics, beach trips, and more. 4、Rainproof Design: Bike speaker adopts IPX5 proof design, no need to worry about wet or rain damage when used outdoors, enjoy music with peace of mind. 5、Supports Card Insertion: Bike wireless speaker has a built in card slot, supports memory card and U disk direct reading, convenient to play your favorite music anytime and anywhere. Item Type: Bike Bluetooth Speaker Material: ABS, Cloth Bluetooth Specification: V5.3 Wireless Transmission Range: 10M Battery Capacity: 500mAh Li Battery (Shipped with Battery) Built in Voltage: 3.7V Playback Time: About 2H Proof Rating: IPX 5 Product Features: Bluetooth Connection, No Connection Can Be Automatically Shut Down Incoming Call Can Be Answered By Handsfree One Key FM Radio, Memory Card and U Disk Direct Reading, Sound Input DC5V (Type C USB) Charging Support Pair Connection 1 x Cycling Bluetooth Speaker 1 x Data Cable 1 x Fixed Bracket