1. Material: Metal 2. Receiving distance: 500 meters 3. Bluetooth version: 5.0 4. Battery: Built-in lithium battery 5. Rated voltage: 5A 6. Adopts true UHF working frequency band system, adjustable working frequency, excellent sound quality, very suitable for outdoor use, small size, easy to carry and use 7. Transmitter and receiver have built-in rechargeable batteries
