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• EXPAND 20 - Accepting and ending calls when connected to a mobile phone
• EXPAND 20 - Adjusting the volume
• EXPAND 20 - Audio playback
• EXPAND 20 - Charging the battery and connecting via USB cable
• EXPAND 20 - Conference call
• EXPAND 20 - Connecting via audio cable
• EXPAND 20 - Connection possibilities
• EXPAND 20 - How to update firmware
• EXPAND 20 - Making calls
• EXPAND 20 - Muting the microphone
• EXPAND 20 - Muting the ring tone of an incoming call
• EXPAND 20 - Using music mode
• EXPAND 20 - Verifying remaining battery life