1. IP44 waterproof, not afraid of rain 2. Waterproof, dustproof and shockproof, sturdy and beautiful body 3. The transmitter is powered by a button battery, and the battery compartment drawer is designed for easy replacement 4. Touch keys, feel comfortable 5. High performance, low power consumption 6. 4-speed volume adjustable, 38 music can be replaced 7. Power supply mode: the transmitter contains a CR2032 button battery, the receiver is plugged directly 8. Transmission distance: about 280m 9. Dimensions: transmitter about 9 x 4 x 1.5cm, receiver about 11 x 6 x 2cm
