Boss 455BRGB - Product Overview and General Operation; Control Panel Identification; Powering On;Off and Source Selection

+12V DC Negative Ground
Only use speakers with 4 ohms impedance.
The maximum current of the Amp remote trigger is 200mA.
Product overview
1. (power) / SRC (source) button
2. SEL (select/menu) button and VOL (volume) knob
3. BND(BAND) / AMS(automatic store station, automatic music search) and (answer call) button
4. (pause/play), Preset station 1 button
5. INT (intro). Preset station 2 button
6. RPT (repeat), Preset station 3 button
7. RDM (random), Preset station 4 button
8. -10(previous 10 tracks), previous folder, Preset station 5 button
9. +10(next 10 tracks), next folder, Preset station 6 button
10. CLK (clock setting), MUTE button, (end call) button
11. (tune/seek down, previous track, fast reverse) button
12. (tune/ seek up, next track, fast forward) button
13. Hands-free Microphone
14. LCD Display
15. USB Pon
16. AUX IN (auxiliary input) jack
17. Reset button
General Operation
Turn Unit on/off, Change the Source