D1-228

技术参数：
– BT v5.3
– BT IC: RX JL6983
– AI Air free
– Drive: 10mm composite membrane
– Impedance: 32 ohm ±15%
– Sensitivity: 115dB±3dB
– ENC
– Battery in earbuds: 40mAhx2
– Charging Time: 2H
– Charging base: 400 mA