Features 1、It is almost not see when you wear it. It has advanced magnification technology, easy to conceal and comfortable to wear. 2、Layered noise reduction provides you with high‑quality sound, allowing you to immediately enjoy clearer conversations. 3、You can control the program and adjust the volume at the touch of a button, which can help you listen to the sounds of nature. 4、With charging compartment, it can store electricity and continuously charge the hearing aid. 5、Full charged within 6 hours. Working time to about 16 hours. Specification Condition: 100% brand new Item type: Hearing Aid Material: ABS Color: Flesh Color Weight: Approx. 224g Maximum sound output: 115 +/- 3dB Sound gain: >= 28dB +/- 5dB Total harmonic distortion: <= 3% Frequency range: 300-3500MHz Input noise: <= 32dB Voltage: DC 1.5V Current: <= 2mA Full charged within 6 hours Working time up to 16 hours Hearing aid built-in 25mAH rechargeable battery The charging box does not have a built-in battery and requires a USB charging cable Package List 1 x Charging compartment 2 x Hearing aid 1 x Instruction 1 x USB cable 4 x Ear cap 2 x Cleaning brush 2 x Accessories