- Connection distance: effective distance to 10 meters. Effective distance will be shortened for indoor use. 3-5 meters works better.
- Phone call: press function button once to answer a call and hold the button for 2 seconds to refuse a call.
- Redial: In the standby mode, press the function button twice to redial the last number.
- Battery display: the remaining battery of RB-S10 will be played on for iPhone. For other mobile phones, a “Du Du” voice prompt will be played when the battery is low.