1. ON/OFF: Long for 3 seconds to turn on or off,short once to enter the encoder Volume control function, briefly again to exit, the encoder enters frequency modulation the encoder twice in a row to enter the ambient light selection mode, twice in a row to exit. 2. MODE: and hold for 3 seconds to enter the menu settings interface. After entering the interface, rotate the encoder to select the menu the OK button in the middle of the encoder to confirm and enter the submenu settings interface for parameter settings Short the MODE button to exit the submenu and return to the main settings page. Short the MODE button on the main page Switch between three modes: automatic reception (AUTO), manual reception (MAN), and channel stora () Switch between formulas. 3. AM/FM: Short to switch between shortwave, medium wave, longwave, FM, and switch to FM mode. Long to view RDS count According to, short to exit. 4. : Short to switch between stereo and mixed sound, long to set bandwidth frequency Colour:silver Material:Metal Package Contents: 1 * Radio 1 * Remote Control 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.