Function: 1. These hearing aid headphones are almost imperceptible when you wear them, easy to hide and comfortable to wear. 2. To provide you with a high-quality voice so that you can enjoy clearer dialogue right away. 3. Touching the button controls the program and adjusts the volume to help you listen to the sounds of nature. 4. Ma advanced zoom technology, anytime, anywhere to help you, suitable for the elderly. 5. It is small and light, will never strain your ear, convenient for watching movies, enjoying drama and so on. Specification: Item Type: Hearing Aid Headphones Material: ABS Color: as shown in the picture Weight: approx. 49,0 g/1,7 oz Maximum sound intensity: 112 /- 5dB Sound amplification: > 28 dB /- 5 dB Total harmonic distortion: Frequency range: 350-4500 MHz Input noise: Voltage: DC 1,4 V List of packages: 1 x Hearing Aid Headphones 1 x User Manual 1 x Cleaning Brush 5 x Headphone Cover 2 x Storage 1 x Remover 1 battery