TWS Personal Sound Amplifiers for Ear, Rechargeable Amplifiers Personal Aid Digital Personal Sound Amplifier Device, Suitable for Adults, Elderly, 2 Pack

TWS Intelligent And High Quality Clear sound quality, beautiful appearance, sturdy and durable. With adjustable amplification mode function, it can amplify speech background without missing any piece of sound, thus bringing you a clear listening experience without causing transmission loss. It's the second chance for you to feel the true world around you. Specifications: Earphone: 35mAh Recharging base:300mAh Max OSPL90: ? 129�3dB Harmonic-wave distortion: ?10% Frequency response: 450-4500MHz Sound gain: ?38dB�5dB Input noise: ?29dB�3dB Package size: 5.71 * 3.74 * 1.97in Package weight: 0.47lb Full charging time: about 1.5 hours Working time: 25 hours Package Content: 2 x Personal Sound Amplifiers 1 x Recharging Base 6 x Replacement Earplug 1 x Brush 1 x USB Cable 1 x Manual