ISO tunes IT-72 True Wireless Bluetooth Earbuds Instruksiehandleiding
ISOtunes FREE 2.0 IT-72, IT-73, IT-74 IT-72 True Wireless Bluetooth Earbuds ANSI S3.19-1974 Table (NRR Table) A1: Frequency, Hz 125 250 500 1000 2000 3150 4000 6300 8000 NRR A2: Grand Mean Attenuation, dB 30.1 29.0 37.2 36.9 35.8 36.2…