EW200 Elegant true wireless sleep BT headset "1, Bluetooth 5.4, chip: JL AC6973D4 2. Battery capacity: charging case 400 mAh, headset 30 mAh 3. Usage time: 4 hours 4. Dimensions: 52*46*27.5 mm; Total weight: 35.5 g 5. Supports master-slave switching, track up and down switching, Siri summoning and other functions 6. Compact sleeping earphones and charging compartment with power display"
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