Specification: 
BT Wireless: Bluetooth v5.4
Battery Capacity: 200-500mah
Estimated Battery Life: 5-10 hours
Waterproof Standard: IPX-8
battery capacity(mah): 200-500mah
Connection: Wireless
Volume Control: Yes
Audio frequency range: 20Hz ~ 20KHz
Bluetooth distance: 15 meters
Mobile phone connection: one for two functions
Pool model / capacity: 200mAh
Charging time: about 2 hours
Charging voltage: DC 5V
Talk time: 8 hours
Standby time: up to 300 hours
Sensitivity: 85dB±3dB/wM
Distortion: less than 3%                    

 Feature:
1. Different Working Principles
· Bone conduction technology: Sound is mechanically vibrated by the earphone's vibration unit, directly impacting the skull (usually the cheekbone or ear bones), bypassing the eardrum and external auditory canal, transmitting sound waves directly to the inner ear (cochlea).
· Traditional earphones: Rely on air conduction, with sound waves passing through the ear canal to vibrate the eardrum and then transmitted to the inner ear via the auditory ossicles.
2. Open ear canal design
· Non-in-ear: The earphones do not block the ear canal, allowing you to clearly hear ambient sounds (such as traffic and human voices) while wearing them. They are suitable for outdoor activities or situations requiring environmental awareness.
· Hygienic: They reduce moisture and bacterial growth in the ear canal, making them suitable for users who wear them for extended periods or are prone to otitis media.
3. Suitable Applications
· Sports: Allows users to balance music and environmental safety while running or cycling, avoiding the dangers of sound insulation.
· Hearing assistance: Some users with hearing impairments (such as those with external or middle ear problems) can perceive sound through bone conduction.
· Special occupations: Those who need to maintain environmental awareness, such as military personnel and firefighters.
4. Comfort and Wearing Style
· Lightweight Design: Most are made of Imitation protein skin + steel strip + ABS + Silicone, which is lightweight and flexible, allowing for long-term wear without feeling pressure.
· Over-ear Design: Hangs in front of the ear, eliminating pressure on the auricle and suitable for users wearing glasses or helmets.
5. Waterproof and Dustproof
· High Protection Rating: These bone conduction headphones support IPX8 waterproofing, making them suitable for use during strenuous exercise or in the rain.
6. Battery Life and Functionality
· Battery Life: Typically around 8 hours, sufficient for daily exercise.
· Bluetooth Connection: Mainstream models support Bluetooth 5.4 and above.
7. Purchasing Recommendations
· Bone conduction headphones offer safety, health, and adaptability to various scenarios, making them suitable for sports enthusiasts, the hearing impaired, and those in special occupations.