Mini Sound Amplifiers Aids | Set of 2 with Portable Charging Case Upgrade Rechargeable Stylish 300mah Clear Sound Adjustable Volume Looks Like Earbuds 26
Brand: Sawyer Doctor

Portable Charging Case - The protection box has built-in 300mAH battery, which is convenient for charging the earphone through magnetic contact anytime and anywhere. It can be used for 10-12 hours after charging 2 hours, lasts longer than other types of device.

RECHARGEABLE: 10 Hours working for sound amplifier. Charge anytime and anywhere with the case.
A KEY SWITCH: Short press for Volume, long press for turn on/off, no need to take it off.
NOISE CANCELLING: It can restore sound effectively, helps users to hear missed sound with clarity.
ERGONOMIC DESIGN: Different shape earplugs can fit all people and very comfortable.
HASSLE-FREE WARRANTY: Provide 30 days UNCONDITIONAL return service, also.