Hearing aid battery compartment $ 8.43 Type: Headphone Headset type: headset Wearing method: earplugs Headphone output source: communication equipment Whether to use wireless headphones: both Phonetic principle: dynamic circle Frequency response range: 1 (Hz) Impedance: 1 () Sensitivity: 1 (DB) Distortion rate: 1 (%) Conductor length: 1 (m) Speaker diameter: 1 (mm)
