Doosl Rechargeable Personal Sound Amplifier, In-Ear Sound Amplifiers for Adults and Seniors, White Muscle Massage Gun Package size: 19 * 15

Package size: 19 * 15 * 6cm / 7

Low Bandwidth:

Working Time: About 7 days

And you can see the mode you're using directly through the LED screen

★ Rechargeable and Power Indicator: 4 blue light indicate remaining power: 100% -75% -50% -25%

Doosl Rechargeable Personal Sound Amplifier, In-Ear Sound Amplifiers for Adults and Seniors, White Muscle Massage Gun Package size: 19 * 15" Super Effective Assist Ideal for most mild to moderate heard problem. With noise reduction, these small devices will bring you back in the clear world. Comfortable to Wear Very small and lightweight, With silicone tips, this personal sound amplifier features soft, comfortable and lightweight for long time wearing. Rechargeable Connected to USB cable for 4 hours, you will get a 30 hours using duration. As easy as charging a mobile phone no need to