Product Review

This super mini listening device is a real breakthrough in sound magnification technology. You'll hear more clearly and distinctly.
High-definition digital chips delivers more distortion-free sound, quiet performance with less circuit noise, digital feedback cancellation and noise reduction.
Increased sensitivity for better hearing: More accurate sound reproduction, the ergonomic design ensure the comfortable experience for left and right ear.
Super lightweight and compact-- weights only 3g, it amplifies sounds up to 50 decibels. The compact and discreet Invisible Ear will pick up the words easily.
Amazingly small design-- 0.9cm x 1.2cm (0.35" x 0.5") to fit both ears, and is small enough to pop into your pocket, they are so tiny, no-one will be able to tell you're wearing one!
These are surprisingly small but extremely effective!! There is no need for ugly hook-over hearing amplifers, these just pop safely into your ear as shown.
What's more, the mini hearing amplifier is powered by A10 Zinc air battery, which offers stable voltage(around 1.45~1.50V) to minimize the circuit interference, makes the sound much more clear.

Specifications:
1. Max sound: 120±5dB • 2. Sound gain: ≥89dB • 3. Total harmonic distortion: ≤5% • 4. Frequency range: 200-4000Hz • 5. Input noise: ≤30dB • 6. Voltage: D.C.1.5V
Pack includes:
1x mini Hearing amplifier • 3x Different aize eartips • 2x A10 Zinc air cell battery • 1x Volume control bar • 1x Operational manual