Device type: Hearing aid.
Speaker dimensions: 12 1/2 x 6 3/8 x 2 1/8 inch.
Amplifier dimensions: 6 1/4 x 6 3/4 x 1 7/8 inch.
Power Supply: Input 100V-240 volts.
Weight: 7 ½ Pounds (Complete 2 Speaker System).
Operating temperature: 10°C to 40°C (50°F to 104°F).
Storage temperature: -20°C to 50°C (-4°F to 122°F).
Operating humidity range: 0 to 95% (non-condensing).
Storage humidity range: 0 to 95% (non-condensing).
Max audio SPL output: (per emitter) 100dB @ 1.5kHz/2 meters.
Frequency response: 300Hz to 18kHz.
Carrier frequency: Proprietary in the range of 40kHz.
Amplifier type: Customized Class D digital.
Amplifier power output: 15 Watts.
Color: Black.
Warranty: Through Manufacturer.