Product Description: Analog behind-the-ear hearing aid. Suitable for moderate hearing loss. setting: volume control, N-H-O switch. Stable quality. Technical Data: Fitting coverage: 10-100dB; Peak gain: 55dB; HFA full on gain: 52dB; Total harmonic distortion: <3%; EQ input noise: <30dB; Battery currency: 0.8mAh Specifications: *classic model, stable quality *analog for moderate hearing loss *exchangeable between ear hook and open fit tube *VC, N-H-O switch