1. Low power V5.2 chip, simpler and faster connection2. The 8mm moving coil and graphene diaphragm are selected as the generating unit, the sound effect is strong and the connection between high, middle and low frequency is natural and smooth.3. Smooth skin-friendly silicone material, unique memory arc shape, automatically rebound and return to its original shape, adjust the arc at any time, and make it more comfortable to wear4. Customized on-ear, oblique in-ear design, comfortable to wear and not easy to fall off5. The aluminum alloy shell adopts strong adsorption design to prevent entanglement and refuse to slip off6. Support card, dual mode use7. Bluetooth receiving distance: 10 meters8. Battery life: 80 hours, can play and listen to songs for 60 hours9. Battery capacity: 500mAh10. Noise reduction: CVC 6.0

http://olla.gr/d08-bluetooth-5.2-sports-wireless-earphone-neck-mounted-in-ear-headset-black/