ITEM NAME:Wireless Bluetooth 5.0 Bone Conduction Headset Open Ear Sport Headphone Earphone Description: BONE CONDUCTION TECHNOLOGY: Works by vibrations, sound transmit via cheekbone to your cochleas, which avoids hearing impairment compare to ordinary earphones. Open-ear design helps you stay alert to your surroundings, avoid danger and meanwhile enjoy music. TRUE WIRELESS BLUETOOTH V5.0: The latest Bluetooth 5.0 technology provides faster pairing and more stable connection. LONG BATTERY LIFE: Built in 120mAh lithium battery. Full charge take 2 hours, Standby time 5 days and play/talk time around 4-6 hours. WATERPROOF DESIGN: Sweatrproof to resist light rain and sweat for outdoor activities, such as jogging, cycling, running, driving etc. COMFORTABLE WEARING: Memory titanium alloy earhook rear hanging design, support 360 degree bending, ergonomic fitting your auricle, make sure you do sport freely never worry about falling out. Specification: Bluetooth version: 5.1 Weight: 20g BT distance: 10-15M Speaker Type: Bone Conduction Technology Speaker Frequency:20Hz-20kHz Microphone Sensitivity:-42db Battery: 120mAh Lithium Polymer Battery Play time: 4-5 hours talk time: 5-6 hours Headphone charging time: 1.5 hour Standby Time: 5 days Package Includes: 1*Headset 1*Charging Cable 1*User Manual SKU: DMO0009702368033181.Speaker Type: Bone Conduction Technology Speaker. WATERPROOF DESIGN: Sweatrproof to resist light rain and sweat for outdoor activities, such as jogging, cycling, running, driving etc. Bluetooth version: 5.1.