• Tonex D1 Bass Earphones Earphone (3.5mm Jack) TNX-D1 Specifications Connection/Jack: 3.5mm Sensitivity: 100dB Impedance: 32ohms Frequency Range: 20 - 20000Hz Cable Length: 110 cm Weight: 16g Natural and realistic sound with dynamic driver Incoming call answering Fully fitting design into the ear Cable integrated single button Track/song changing Compatibility Compatible with all devices with 3.5mm jack input