Open Ear Wireless Bone Conduction Headphones with Bluetooth Mic fast

Product description Color: black ， red Bluetooth version 5.0 Effective distance: 10M Material type: titanium alloy / soft TPE rubber Battery type: polymer 120 mAh Frequency range: 20Hz-20KHz Charging voltage: DC-5V 500mA Charging type: Micro USB Playing time: approx. 10 hours (test with medium volume) Standby time: about 10 days Charging time: approx. 2 hours Size: 158 * 110 * 48mm Delivery content: 1 x earphone 1 X charging cable 1 X manual 1. 【Easy to carry】 ： Open wireless headphones surround the directional sound field, open design, only 18g, sweatproof and waterproof, short service life ， easy to carry. 2. 【Protection】: Wear it comfortably without ear clips and protect your ears from damage. Surrounding directional sound field The loudspeaker uses the physical-ecological membrane technology. 3. 【Waterproof】: 120 mAh battery life, bluetooth 5.0 chip, lower power consumption, longer battery life, IPX5 lifetime waterproof. 4. 【SPEAKER UNIT IS EXTERNAL】 ： The speaker is near the ear, but is not in the ear and is not blocking the ear canal. Listening to the environment during a call or music, safer on the go or in some scenes and more portable for business. 5. 【Memory alloy frame design】: High-strength titanium alloy metal frame, resistant to compression, breakage and deformation, does not feel when worn, and can be rotated as you like.