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    Split Separate Design Fineblue RWS-X8 BT 5.0 Wireless Business Stereo Wireless Sport Earbuds Headset For Phone iPhone (Black)

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    Split Separate Design Fineblue RWS-X8 BT 5.0 Wireless Business Stereo Wireless Sport Earbuds Headset For Phone iPhone (Black)
    Working frequency band: ISM band (2, 402-2, 480GHz)Maximum
    output power: 5mWTransmission
    power: class
    2 (-6dbm-4dbm)Communication distance: 10 meters
    Frequency range: 50-20KHzNominal
    output power: 3mWChip
    model: RTL8763BFR
    Body size:
    headphones: 22.5 mm (length) x 17mm (width) x 23mm (the height of the ear lid)
    Bluetooth version: Bluetooth V 5.0, support protocol HFP 1.7 HSP 1.2 A2DP 1.3 AVRCP 1.6
    SPP 1.2L oad box: 97mm (length) x 31mm (width) x 22mm
    Charge voltage: 5VOperating
    voltage: 3.7VB
    attery specifications: polymer headphone battery (401214/approximately 45mAh); charger battery (600mAh)
    Speaker impedance: 16 15%
    Sensitivity: 100dB
    3dBSpeaker size: 6
    x 4.8 mmSensitivity: -42dB 3db
    Product model: RWS-X8

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