Style:Ear Hook Vocalism Principle:Dynamic Active Noise-Cancellation:No Control Button:Yes Communication:Wired Volume Control:No Sensitivity:95dB Is wireless:No Certification:CE Number Of Drivers:2 Plug Type:Line Type Impedance Range:up to 32 Connectors:3.5mm Model Number:Wired Bone Conduction Headphones ES-BC009 Support Memory Card:No Waterproof:Yes Frequency Response Range:20 - 16000Hz Magnet Type:Other Wireless Type:None Line Length:1.2m Support APP:No Function:for Video Game Driver Diameter:6mm Resistance:16 With Microphone:Yes Features:waterproof 1:Bone Conduction Wired Earphone 2:open ear bone conduction 3:bone conduction open ear headset with mic 4:earphones painless not in the ear 5:not in ear headphones 6:sports headphones not in ear Bone Conduction Wired Earphones 3.5mm Painless Comfortable Not In The Ear Open Ear Headphones with Mic Noise Cancel for Running Cycling Key Points: 1. Open ear bone conduction wired earphones 2. 3.5mm audio jack can be compatible with all 3.5mm mobile phones, tablets, MP3, MP4, computer, etc 3. With lavalier to keep the cable in place 4. Water resistant not in-ear headphones are suitable for running, cycling and other outdoor sports 5. Lightweight ear-hook headset for long-time wearing painless & comfortable Warm Tip: The dimensional of this bone conduction headphone's microphone is 6*5mm. Some customers request loud volume, just like big headband headphones, please ignore this headset. Besides, it doesn't support to adjust volume by itself, only controlled via the connected device like phone.