High quality TWS headset wireless headset bt headset wireless charging box hifi audio OEM

: High quality TWS headset wireless headset bt headset wireless charging box hifi audio OEM

 §Bluetooth version: Bluetooth 5.0

§Barrier free distance: 15m
§Call mode: binaural call
§Horn specification: copper ring composite film horn
§Frequency response: 20-20000 Hz
§Earphone battery material: lithium battery / with protection IC
§Battery capacity: 25 Mah
§Battery material of charging chamber: polymer battery / with protection plate
§Battery capacity of charging chamber: 200 Mah
§Music playing time: about 3 hours
§Standby time: about three months
§Surface treatment: Metal

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