Description: Product selling points:1. The ring light guide is designed. When charging, the light guide will light up red, and when Bluetooth pairing is successful, the light will light up blue, more intuitively reducing customer complaints about Bluetooth pairing. 2. Add voice keys. The user can easily activate the "Siri" intelligent voice by pressing the voice keys in the driving mode. 3. The up/down button is designed on the side of the fuselage to facilitate the user to control the up and down music of Bluetooth music when driving. 4. The latest Bluetooth 5.0 chip, high sensitivity microphone, CVC noise reduction technology are used to make the transmission distance longer and the DSP signal processing technology can make the call clearer. 5. Built in 300mA battery for longer battery life. 6. Add LCD display to display Bluetooth status, power, volume and other contents intuitively