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• Rechargeable Hearing Aid Invisible Digital Sound Amplifier for Deafness elderly Min Wireless ears listening to aids Powerful Product Features: Product Name: Rechargeable Mini Hearing Aid 1 Long standby time(about 48-72h) 2 Safe USB Charging( Do not deserve to substitute battery ) 3 Digital chip(Better sound quality) four Intelligent noise reduction five Anti-howling 6 Bluetooth listening to aid pls touch seller Product parameters: 1 Material: scientific - grade TPE environmentally friendly materials 2 Weight: about 3g three Current consumption: 1 4 Working time after being solely charged: about 48-72H five Maximum Output: 129+4dB 6 Maximum Gain: 29±3dB 7 Total Harmonic Distortion: ≤7%+3% eight Equivalent Input Noise: ≤28 Packing list: Principal machine * 1 Earplugs * four Cleaning sweeper * 1 Charger * 1 Charger cable* 1 Charging box*1 Britzgo kit box * 1 If listening to reduction have the whistle, Try this way: Choose the appropriate earplug, Turn the amount button,stop till the sound is the lowest, Ajust the angle,put the listening to aid in your ear, Make your ears feel comfortable, Turn at the swith,slowly develop the quantity till it suits for you there are many stock, you could possibly place the order reassuring, will deliver within 24 hours

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