Features: <br />Brand new and high quality<br />Volume adjustable<br />1-7 gears<br />Clear sound quality<br /><br /><br />Volume: adjustable, 1-7 gears<br />Max. Sound Output: 130±5 dB<br />Max. Sound Gain: 55dB±5dB<br />Harmonic Wave Distortion: ≤5%<br />Frequency Range: 300～4000 Hz<br />Input Noise: ≤30 dB<br />Battery: AA dry cell battery<br />Operating Voltage: DC 1.5V<br />Operating Current: ≤4mA      <br />Product size: 6.8 x 4.5 x 2.0 cm<br />Weight: 28g<br />Earphone cable length: 70 cm<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 Earphone<br />1 x Main device<br />1 x English user manual<br />3 x Ear bud cover<br />1 x Ear bud connector<br />In original package<br /><img src="//agdetail.image-gmkt.com/m430/384/693/620693384/img/agdetail.image-gmkt.com/384/693/620693384/img/img6.eachbuyer.com/x9/p100/bc911_1.jpg" />                                                        <img src="//agdetail.image-gmkt.com/m430/384/693/620693384/img/agdetail.image-gmkt.com/384/693/620693384/img/img6.eachbuyer.com/x9/p100/bc911_2.jpg" />                                                        <img src="//agdetail.image-gmkt.com/m430/384/693/620693384/img/agdetail.image-gmkt.com/384/693/620693384/img/img6.eachbuyer.com/x9/p100/bc911_3.jpg" />                                                        <img src="//agdetail.image-gmkt.com/m430/384/693/620693384/img/agdetail.image-gmkt.com/384/693/620693384/img/img6.eachbuyer.com/x9/p100/bc911_4.jpg" />                                                        <img src="//agdetail.image-gmkt.com/m430/384/693/620693384/img/agdetail.image-gmkt.com/384/693/620693384/img/img6.eachbuyer.com/x9/p100/bc911_5.jpg" />                                                        <img src="//agdetail.image-gmkt.com/m430/384/693/620693384/img/agdetail.image-gmkt.com/384/693/620693384/img/img6.eachbuyer.com/x9/p100/bc911_6.jpg" />                                                        <img src="//agdetail.image-gmkt.com/m430/384/693/620693384/img/agdetail.image-gmkt.com/384/693/620693384/img/img6.eachbuyer.com/x9/p100/bc911_7.jpg" />                                                        <img src="//agdetail.image-gmkt.com/m430/384/693/620693384/img/agdetail.image-gmkt.com/384/693/620693384/img/img6.eachbuyer.com/x9/p100/bc911_8.jpg" />