HAVEN IT-15 True Wireless Bluetooth Earbuds Instruction Manual
FREE Aware IT-15, IT-16 IT-15 True Wireless Bluetooth Earbuds ANSI S3.19-1974 Table (NRR Table) Short Eartips Frequency, Hz 125 250 500 1000 2000 3150 4000 6300 8000 NRR CSA Grand Mean Attenuation, dB 30.7 28.2 33.7 33.5 32.9 33.9 35.9…