1. Bluetooth device name: YP04
2. Bluetooth chip model: AC6956A4
3. Bluetooth version: V5.1
4. Bluetooth transmission distance: about 10 meters
5. Power supply interface: USB
6. Audio output interface: 3.5mm
7. Call function: support, USBA male connector built-in silicon microphone
8. Working voltage: 3.6-5.5V
9. Working current: 20mA
10. Indicator status: After USB power supply, the green light flashes quickly, and after the Bluetooth connection is successful, the green light flashes slowly
11. Frequency response: 20Hz-20KHz
12. Size: about 0.5m in length

Features:
1. After USB power supply, the green light flashes quickly, and after the Bluetooth connection is successful, the green light flashes slowly
2. 3.5mm male audio output, suitable for car audio, ordinary audio and other audio equipment with Aux interface
3. Enameled copper wire core, high-fidelity transmission, no noise, no current sound
4. Bluetooth 5.1 master control, stable signal transmission, no delay and no freeze, listening to songs more smoothly
5. Support mobile phone music and call functions, with car echo cancellation
6. Support 1 drag 2 support, (connect 2 mobile phones at the same time, switch between two mobile phones at will, and share the music of two mobile phones)
7. Automatic connection without power failure (automatic connection after the person leaves the car and returns)
8. Built-in antenna design, can achieve 0-10m long-distance transmission
9. The core wire is made of 6331 PP material, and the outer layer is made of TPU material and nylon braided wire, which is anti-winding, good elasticity, orderly and not messy
10. Zinc alloy shell, good heat dissipation, non-hot, longer service life