Lifebox - Model B-HA02 - Rechargeable BTE Hearing Aid

Peak OSPL 90 ( dB SPL) : maximum power output 130 dB; HAF OSPL 90 ( dB SPL) : average output 120 dB; Peak Gain(dB) : maximum gain 50 dB (output minus input); HAF/FOG Gain (dB) : average gain 40 dB; Frequency range(Hz) : 300-5000Hz; Distortion: 500Hz : 5% | 800Hz : 3%?1600Hz : 3%; Equivalent Input Noise (dB): 28 dB; 4 level adjustable volume; 4 mode adjustable sound distortion; Rechargeable with Lithium battery; Long working hours: ~ 80 hrs.; Charging time: 4-6 hrs.; Dimension: 14 x 45 x 40 mm.; Weight: 7 grams.