D1-231 ANC TWS

技术参数：
– 5636A/BT v5.4
– Drive: 13mm
– Impedance: 32 ohm ±15%
– Sensitivity: 109dB±3dB
– ANC(FF)
– Battery in earbuds: 35mAhx2
– Charging Time: 2H
– Charging base: 300 mA