Feature:<br /><br />100% Brand New and High Quality<br /><br />Sound amplifier helps to amplify sound up to 30x with low background noise.<br /><br />Inbuilt battery convenient to recharge.<br /><br />There is no battery required to replace again.<br /><br />Fully charged replaceable artery can stand up to 8-10 hours continues use.<br /><br />Best hearing keep the ear tips clean and replace.<br /><br />Interchangeable ear tips to seal out the noise.<br /><br />Item Type: Ear Care<br /><br />Material: ABS<br /><br />Model Number: Hearing Aids Aid Behind The Ear Sound Amplifier<br /><br />Size:145*105*60mm<br /><br />Plug Type: US<br /><br />Battery: 1.2V<br /><br />Working Current: Less Than 3mA<br /><br />Signal to Noise Ration: Less Than 28db<br /><br />Frequency: 100-4000Hz<br /><br />Gain: 30db<br /><br />Distortion: Less Than 6%<br /><br />Color: As the picture show