AUDITECH hearing amplifiers designed by audiologist are easy, durable, and comfortable to wear in the ears. Sales Package - 1 Hearing Aid, 3 Earplugs of different size, 1 charger and 1 Instruction Manual. Please read the Instructions Manual before using the Product. Suitable For: Normal To Moderate. Fully charged 1 time can be used continuously for 3 days (Depending upon the Volume).