Product Name: RC-Bc20 8ohm 0.3W Bone Conduction Transducer for Glasses Model NO.: RC-BC20 Brand: Recon WORD nChannels: 2.0 Usage: Monitor Radiation Mode: Indirect Radiation Type Style: Head-mounted Transducer Principle: Excited Speaker Cone: Rubber-edge Transmission Mode: Bone Conduction Category: Speaker Output Power: 8ohm 1W Working Voltage: 1.8 V Size: 14.5*5.8*10.8mm Trademark: recon Transport Package: Carton Specification: 8ohm 1W Origin: China Product Description 1 .Operating voltage(max):3.7Vpp2. Average working voltage:1.8 V3 .Sound pressure level:86dB @1kHz4.Average working current:180mA5. Impedance:8 ± 5%Ohm6.Frequency:200-20000Hz7. Rated input(W):0.5W8. Max input(W):1W9. Operation temperature: -20 to +60 deg11 . Storage temperature: -30 to +70 deg12 . Size: 14.5*5.8*10.8mm13. Model number : RC-BC20