Open Bluetooth headphones avoid the complaints caused by wearing in-ear or over-ear headphones. It doesn't go into your ear canal. You can wear them comfortably all day long. Open design for better situational awareness Open headphones sit on your ear and don't obscure them, ensuring you enjoy your music and podcasts while staying away from cyclists or traffic as you can hear your surroundings naturally. Clear calls, less sound loss The headphones are equipped with a noise-cancelling chip to ensure you have clear calls. Bluetooth chip 5.3 HD sound quality, Bluetooth chip provides stable connection and also provides high definition sound quality. Product Description: Material: ABS Bluetooth: 5.3 Use: Ear clip type Transmission range: 10m Single listening time: 6h Listening time with charging compartment: 24 hours Headphone charging compartment: 4 times Battery capacity: 400mAh Charging time: 1.5h Charging port: Type-C Size: 11 x 8.5 x 4cm/4.33 x 3.34 x 1.57inch Package Included: 1 x Bluetooth Headphones 1 x Charging