This sound amplifier will give you precise sound amplification. Easy to operate, convenient for daily use and travel use. Come and have a try.FeaturesAdjustable volume, 8 levels for selection, you can turn up the volume from low to high, providing you the best sound quality.Easy to operate, powered by 1 x AAA battery (Not Included), enjoy your life with this lovely stuff.Comes with silicone ear plugs, not easy to slip off, it will be very comfortable to wear for a long time.Reliable quality, made of usertofriendly material, flexible, safe to wear without harming ear canal.It includes 2 pieces of earplugs in different sizes, a hearing aid cord and a main unit.Portable size, it has a clip at the back, nice for you to carry it outside.SpecificationsType Hearing AidModel Xto136Material Silica GelABSColor GreySound Output 1305dBSound Gain 50dBFrequency Range 300to4000HzInput Noise 30dBBattery 1 x AAA Battery (Not Included)Voltage DC 1.5VWorking Current 4mAItem Size Approx. 7 x 4 x 1.8cm or 2.76 x 1.57 x 0.71inPackage Size Approx. 11.6 x 8.1 x 3.1cm or 4.57 x 3.19 x 1.22inPackage Weight Approx. 88g or 3.1ozNotePlease read the user manual carefully before use.Package List1 x Hearing Aid2 x Earplugs1 x Hearing Aid Cord1 x English User Manual