VOLUME ADJUSTMENT
The volume can be adjusted in several steps using the Plus (6) and Minus (7)
buttons. Press the Plus button briefly to increase the volume by one step, or
the Minus button to decrease the volume by one step.
TECHNICAL SPECIFICATIONS
Bell 520 RX
• Operating voltage: 230V / 50 Hz
• Power consumption: <1W
• Frequency: 434MHz
• Range: approx. 100m to 500m (depending on the transmitter used)
• Temperature range: -20°C to +55°C
Bell 521 RX
• Operating voltage: 3x 1.5V alkaline type AA
• Frequency: 434MHz
• Range: approx. 100m to 500m (depending on the transmitter used)
• Temperature range: -20°C to +55°C
17
BELL-520 RX
ENGLISH
BELL-521 RX
GB