الوصف

V**9 is a great invention with wonderful innovation. This model could totally eliminate the grating of the product. The metal material outside give you the perfect handle, and it certainly includes our power saving technology. It is an outstanding product which provide perfect hearing experience, easy operation, long using life and comfortable handle. Max Sound Output: **0?5 dB Max Sound Gain:≥*0 dB Harmonic Wave Distortion: ≤5% Frequency Range: **0~***0 hz Input Noise: ≤*0 dB Battery: 5# Dry battery Max Working Hours with Standard Battery: *0 h Working Voltage: xxxxx 1.5V Working Current: ≤4 mA Measurement: 6.1x4.1x1.6 cm Net Weight: *6 g (without Battery) Special Function Key: N-H Key Origin: Zhongshan, China