Feature:1. The body is compact as if it is not worn, and it fits closely to the ear canal, and the design is more comfortable.2. Simple operation, no need to debug, no switch design, use battery to switch on and off.3. A variety of custom earplugs, different earplug sizes, make you more comfortable.4. Automatically eliminate environmental noise, say goodbye to noise without worry.5. The hearing aid can be applied to watching television and outdoor scenes like a park and busy area.Specification:Condition:100% Brand New Item Type: Hearing AidMaterial: ABSPower Supply Mode: 1 x 10A battery (not included)Instructions:Distinguish left and right ears: Hearing aids have colors or letters to distinguish the right ear from the left ear. The right ear is red or printed with R on the shell. The left ear is blue or printed with L on the shellHow to Wear Hearing Aid:1. Hold the hearing aid with a detachable tool, the bottom is the handle, the top is the white dot, between your thumb and index finger2. Gently insert the auditory canal part, push back and insert it, and put the auditory device in the correct position completelyBefore placing the hearing aid into your ear with your index finger, make sure that the battery is inserted correctly and the battery door is closed tightly.On and off function:Turn off the handset and turn on the hearing aid.The battery door is fully open. Turn off the hearing aid by opening the headset battery doorVolume adjustment: clockwise volume increase, counterclockwise decrease..Package List:1 x Hearing Aid1 x Screwdriver1 x English Manual5 x Eardrum1 x Cleaning Brush1 x Cerumen Baffle1 x Storage BoxNote:Do not open or close the battery cover forcibly. Use a brush to hold the battery to open the hearing aid battery compartment.Your hearing healthcare professional has set the volume and controls to meet your specific hearing requirements.