A-155 Professional Fashion Style Ear Hearing Aid Sound Card 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 choose 4. 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 4dB Sound gain: 48dB 5dB Total harmonic wave distortion: 5% Frequency range: 250~3800Hz Battery: Lithium battery Input noise: 30dB Voltage: DC 3.7V Current: 4mA Size:43.5*20*13mm Package Included : 1 x A-155 Hearing Aid 1 x AC charger adaptor 1 x Ear clip 4 x Units of earplug of different size 1 x Instruction Manual In English Details pictures :