D1-97

技术参数：
– BT v5.2/QCC3040
– Air free
– Drive: 14.2mm composite membrane
– Impedance: 32 ohm ±15%
– Sensitivity: 115dB±3dB
– CVC8
– Battery in earbuds: 40mAhx2
– Charging Time: 2H
– Charging base: 400 mA