Specifications:
Name: Hearing Device
Material: ABS+silicone
Type: 2pcs blue+red
Battery(according to your selection):
2pcs blue+red: 2 * built-in battery, 1.5V, 2mAh (included)
Rated working current: ≤2mA
Charge time: ≤6 hour
Working time: ≥20 hours
Item size(rechargeable base): 68 * 45mm / 2.68 * 1.77in
Item weight:
Hearing device: 2.5g / 0.09ounce
Rechargeable base: 39g / 1.38ounce
Package size: 150 * 95 * 57mm / 5.91 * 3.74 * 2.24in
Package weight: 225g / 7.94ounce

Features:
This hearing device is designed for old people or people with hearing problems.
Selected superior chip with fine sound quality and stable transmission performance.
Its clearly sound quality and big power can be used for compensation of the hearing loss.
Easy-to-wear design, conform to your ear shape, stable wearing and can ensures the comfort. 
Full digital circuitry, low power consumption, adaptive noise reduction, and can prevents howling.
Soft silica gel 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.
Rotate volume control, easy to adjust the volume by clockwise and counterclockwise the volume knob, user friendly and convenient.
Comes with 3pcs earplugs in different sizes, widely suitable for different users with different demands.

Packing List
2 * Hearing Device
3 * Earplug
1 * Recharging Base
1 * USB Cable