Features: So cozy is it listening to the nature. It comes with an excellent built-in digital noise reduction controller, allowing you to hear the person next to you with ease even in a noisy room. The hearing amplifier is extremely small in size and light in weight that makes it one of the tiniest devices available. Easy to wear, low noise, low distortion, for people with severe hearing lo. Comfortable for either right or left ear, good performance. Ultra mini size and light weight, not easily to be seen. Descriptions: Easy to hide and comfortably wear, This hearing device is unmatched in comfort and style. It is designed to be stylish and easily blend in with your body. The device is comfortable in either ear, and comes with 4 different sized domes to fit different sized ears. Adjust volume to the minimum before wearing. Increase volume gradually to avoid sudden increase in sound. Help people with hearing impairment to hear sound and voice. Specifications: Brand: JECPP Model: F-168 Material: plastic Product Size: Approx. 47*18*9mm Color: beige Max sound output: 130dB5dB Sound gain: 50dB Harmonic Wave Distortion: 5% Frequency response Range: 300Hz~4000Hz Input Noise: 30dB Power Voltage: 1.5 V Current: 4mA Battery Type: AG13 Package Includes: 1 x Hearing Aid 4 x Earplug of different size 2 x Cell Battery 1 x Box 1 x Brush 1 x Screwdriver 1 x Manual