Features: <br />Brand new and high quality<br />Light weight<br />Low frequency， noise reduction<br /><br /><br />Product size: 4.5 x 4.2 x 1.0 cm<br />Max. Sound Output: ≥127±4 dB<br />Max. Sound Gain: 48dB±5dB<br />Harmonic Wave Distortion: ≤5%<br />Frequency Range: 300～4000 Hz<br />Input Noise: ≤32 dB<br />Battery: AG13 battery<br />Operating Voltage: DC 1.5V<br />Operating Current: ≤4mA      <br /><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 />1 x Hearing aid<br />2 x Button batteries <br />5 x Earplugs<br />1 x Earplug connector<br />1 x English user manual<br />In carton<br /><img src="http://img6.eachbuyer.com/x9/p100/bc910_1.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/bc910_2.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/bc910_3.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/bc910_4.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/bc910_5.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/bc910_6.jpg" />