V-155 Professional Fashion Style Ear Hearing Aid Sound Amplifier

Features:1. Convenient for watching movie without disturb other people, enjoying the drama, attending meeting, or having class, it could help you hear the sound clearly and loudly.2. When in forest, it will be a good choice if you want to hear very slight sound.3. Different size noise prevention earplug to choose4. Use the most splendid lighium battery power supply, provides the battery charge ,rechargeable for 1000 times.5. Packaged in a nice retail box which is perfect for retailling.Specification : Max sound output: 127dB ± 4dBSound gain: 48dB ± 5dBTotal harmonic wave distortion: ≤5%Frequency range: 250~3800HzBattery: Lithium batteryInput noise: ≤30dBVoltage: DC 3.7VCurrent: ≤4mASize:43.5*20*13mmPackage Included :1 x V-155 Hearing Aid1 x AC charger adaptor1 x Ear clip4 x Units of earplug of different size1 x Instruction Manual In EnglishDetails pictures :