Bluetooth solution: V3.0 + EDR (compatible with Bluetooth 2.1 / 2.0 / 1.2 Bluetooth system)
    USB charging: DC5VIN
    FM frequency: 87.5-108MHz
    Bluetooth frequency: 2.401-2.480GHz
    Bluetooth distance: 10 meters
    Frequency response: 50HZ-20KHz
    Output power: 35mW
    Signal to noise ratio: 88Db
    Charging time: 2 hours
    Frequency range: 20KHz-20000KHz
    Sensitivity: 90dB / mW
    Impedance: 32Ω
    Drive unit: 40mm
    Life time: 5 to 6 hours
    Duration: 12 ~ 13 hours
    Transmission distance: 10 meters
    Battery capacity: 250mA
    Transmitting frequency: 2402MHz-2480MHz
    Support TF card player, FM function, Bluetooth playback, call function
Blister packs Quantity: 40 pcs
Carton Size: 77 * 40 * 48.5cm
Weight: 16kg
Carton small package Packing: 100pcs
Carton size: 74.5 * 40 * 59cm
Weight: 24kg

Operation method:
1, undefined long press the key for 3 seconds to boot, red light shiny, hear the English voice prompts, make sure the headset is on.
2, undefined Bluetooth call status, short press to answer the call, long press refused to press, press twice for redial; Bluetooth playback status short press to play, pause; TF card playback status short press play, pause; FM state short press auto search Radio machine Bluetooth, or other Bluetooth devices, start music playback,
3, undefined Bluetooth state short press on a song, long press the volume down; MP3 state press a song, long press the volume minus; FM state short press on a frequency, long press the volume minus.
4, undefined Bluetooth state short press a song, long press the volume plus; MP3 state press a song, long press the volume plus; FM state short press a frequency, long press the volume plus.
5, when the device does not support the Bluetooth link, you can use 3.5MM audio cable to complete the connection to play, then headphones for ordinary headphones, buttons can not afford any effect.
6, when the Bluetooth headset can not open the machine, please charge the device.

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Professional production and sales: headphones, mobile power, U disk / memory card, the product can print customers LOGO, corporate logo, custom gifts, welcome to order!

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