Behind the ear hearing aid<br>6-level volumes, can be adjusted<br>Clear sound quality<br><br><br>Product size: 60 x 40 x 10MM<br>Maximum acoustic output: 150 db ± 5 db<br>Maximum acoustic gain ratio: 50dB ± 5 db<br>Harmonic distortion: ≤5%<br>Frequency range: 300~4000 Hz<br>Input noise: ≤30 dB<br>Battery: LR44<br>Operating voltage: DC1.5V <br>Working current: ≤4mA<br>Note:  Although I am required by law to provide to you and obtain from you a signed written waiver of the medical evaluation for a hearing aid, these over the counter hearing sound amplifier aids, which do not require a prescription, they are not medical devices, and comply with all eBay guidelines.  Again these are over the counter (OTC) sound amplifier aids and a waiver form is not required. <br><br>According to the FDA, it is in your best health interest to obtain a professional medical evaluation before purchasing a hearing aid and you are encouraged to do so before bidding on this item. If you choose not to obtain a medical evaluation before purchasing this item, I am required by law to provide to you and obtain from you a signed written waiver of the medical evaluation. I am also required to provide to you a copy of the User Instruction Brochure for a hearing aid, review the contents of that brochure with you, and allow you time to read the brochure. You must provide to me either a signed statement from a physician or a signed waiver before I will deliver this item to you. Upon your request, I will also provide to you a copy of the User Instructional Brochure for the hearing aid or the name and address of the manufacturer or distributor from whom a User Instructional Brochure for the hearing aid can be obtained."<br><br><br><br>1 x Hearing aid<br>3 x Button batteries <br>3 x Earplugs<br>1 x English user manual<br>In original package<br /><img src="http://img6.eachbuyer.com/x9/p100/bc964_1.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/bc964_2.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/bc964_3.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/bc964_4.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/bc964_5.jpg" />