1、This hearing device is designed for old people or people with hearing problems. 2、Its clearly sound quality and big power can be used for compensation of the hearing loss. 3、Easy-to-wear design, conform to your ear shape, stable wearing and can ensures the comfort. 4、Full digital circuitry, low power consumption, adaptive noise reduction, adaptive feedback cancellation. 5、Soft silica gel material, does not harm to your ear, and also ensure wearing stability and lasting. 6、Directly inserted into the recharging base for convenient USB recharging, and the indicator light can direct display the recharging status. 7、Easily button control, easy to power on/off and adjust the volume, user friendly and convenient. 8、Comes with 5pcs earplugs in different sizes, widely suitable for different users with different demands. This sound amplifier is designed for old people or people with hearing problems. Easy-to-wear design, conform to your ear shape, stable wearing and can ensures the comfort. Soft silicone material, does not harm to your ear, and also ensure wearing stability and lasting. Directly inserted into the recharging base for convenient USB recharging, and the indicator light can direct display the recharging status.You can have a try. Specifications: Name: Sound Amplifier Material: ABS+silicone Battery: 1 * built- n battery, 1.2V, 1.2mAh (included) Voltage: DC1.2V Rated working current: ≤2mA Frequency response: 450-4500MHz Maximum sound out put: 120±3dB Sound gain: ≥30dB±5dB Total harmonic-wave distortion: ≤10% Input noise: ≤32dB Charge time: 1-2 hour Working time: 12-15 hours Package size: 165 * 65 * 30mm / 6.50 * 2.56 * 1.18in Package weight: 100g / 3.53ounce 1 * Sound Amplifier 5 * Replacement Earplug 1 * Brush 1 * USB Cable 1 * Recharging Base 1 * Guideline