1. Easily plays music with bass effect via Bluetooth, Micro SD card (TF card) or FM radio. 2. 4000mah rechargeable battery provides a long time usage and turns it into a backup power supply as well, perfect portable wireless speakers for biking, travel, cycling and other outdoor activities. 3. 3 mode flashlight: high,low,strobe; Strobe mode can be used as warning or SOS in outdoor activities. 4. Exquisite appearance make it look different and excellent waterproof performance ensure that it can work even if water washout. 5. It can be easily mounted on the bike by bracket and Silicone protective sleeve ensure waterproof and shockproof.
