5.0 Bluetooth chip, stable link, high-quality transmission No delay in intercom, stronger sound quality. Replace the manual serial intercom operation on the market and realize one-key networking The intercom distance between 2 people is 1000m, and the ideal distance for 6 people to form a network is 2000m. Tough line design, large knob button, easier blind operation, supports up and down songs and volume adjustment to riding safety. -definition HI-FI stereo speakers, highly restore the music texture, powerful and shocking sound effects, more transparent treble, fuller midrange, heavier bass, sweeter vocals, range, and more distinct sound field levels. Connect two mobile phones at the same time, freely choose any device to switch, support pairing and intercom with other , motorcycle friends all over the world are one family. Working voltage: 3.0V-4.2V Power level: Class 1 Noise reduction function: and noise reduction Noise reduction capacity (KM/h): 120 Frequency range: 2.4GHz-2.480GHz Output power: +14-28dBm Decoding format: , ACC Music effect: audio decoder high fidelity quality Bluetooth properties: SPPv1.2, v1.3, HIDv1.1, PXPv1.0.1, FMPv1.0, BASv1.0 (The product printed words depending on the batch, but this does not affect use) Color:As Shown Material:ABS Package Contents: 1 * Motorcycles Headset Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.