Specification Brand : A-FUN BulletPoint1 : Cell phone amplifier wearable,to boost cell phone clarity conversation or music volume,great help for people in crowded place or seniors,elderly, hard of hearing. BulletPoint2 : SIMPLE/EASY, only 3 button design for music or handfree phone call.Built-in microphone is included. BulletPoint3 : SMALL/LIGHT, like a credit card size,2.6 oz,you can hange it close to you,while cell phone is in your pocket. as simpler music player.Music could reduce the chance of Alzheimer's and dementia for elderly. BulletPoint4 : Compatible with most cell phones. Color : Healthy Dark ExternallyAssignedProductIdentifier : 6949639202000 FitType : Universal ItemName : A-FUN Cell Phone Amplifiers for Hard of Hearing ItemPackageQuantity : 1 ItemTypeKeyword : cell-phone-car-cradles-and-mounts Manufacturer : XH PartNumber : XH ProductDescription : ♥Cell phone amplifier wearable,to boost cell phone clarity conversation or music volume,great help for people in crowded place or seniors,elderly, hard of hearing. ♥ SIMPLE/EASY, only one button design for calls and music like a handset.Built-in microphone is for answering clarity phone calls . ♥ SMALL/LIGHT, like a credit card size,2.6 oz,you can hange it in front as a handset to get calls anytime. ♥ 5W amplifier,more powerful than other same size one. ♥ Compatible with most cell phones