FEATHERS:A powerful sound amplifier offering noise reduction and new innovative microprocessor technology for those who need optimal personal sound amplification. Open fit type sound amplifier, wear comfortable, and different shape are provided, which can fit different people. Easy to hand on. with adjustable volume control, you can adjust the sound level as you need. Rechargebale hearing amplifier saves your trouble to buy button batteries frequently, and it is environmental-friendly. WARM TIPS: 1. Please read the instruction manual carefully before you use the hearing amplifier. 2. Background noise is the electric current sound existing in all good machines. Generally, the higher the power, the greater the static sound. 3. Adjust volume to the minimum before wearing; Increase volume gradually to avoid sudden increase in sound. PRODUCT SPECIFICATIONS: 1. Max sound output: 120dB 2. Sound gain: ≥30dB 3. Total harmonic wave distortion: <1000Hz≤10% 4. Frequency range: 250-3800Hz 5. Input noise: ≤50dB 6. Voltage: DC1.5V 7. Current: ≤4mA WHAT YOU GET: 1 x Right Sound Amplifier 1 x Left Ear tube 3 x Ear Tip 1 x Multifunctional Tool 1 x USB charging cable 1 x Carrying Case 1 x User Manual
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