This hearing device is designed for old people or people with hearing problems. Easy-to-wear design, conform to your ear shape, stable wearing and can ensures the comfort. 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.You can have a try. 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. Specifications: Name: Hearing Device Material: ABS+silicone Type: blue-left, red-right, 2pcs blue+red (optional) Battery(according to your selection): 1pcs blue/red: 1 * built-in battery, 1.5V, 2mAh (included) 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 Packing List(1pcs blue/red): 1 * Hearing Device 3 * Earplug 1 * Recharging Base 1 * USB Cable OR Packing List(2pcs blue+red): 2 * Hearing Device 3 * Earplug 1 * Recharging Base 1 * USB Cable