K18 Neckband Bluetooth Headphones Earphones HD Stereo HiFi Sound Headsets with 100H Working Time for Clear Calls, Work, Music, Conference for Cell Phones/Laptop PC/Tablet - Black

• Adopting the advanced Bluetooth 5.1 chip, enhances the signal strength, and greatly improves transmission speed
• With an 800 mAh capacity battery, it can provide a working time of up to 100 hours and only needs around 3 hours to fully charge
• You only need to be fully charged once to enjoy the wonderful music of the whole week. It is definitely a necessary headset for traveling, cycling, running, hiking, etc
• Support TF card insertion. You can listen to music without your mobile phone
• Combined with the built-in high sensitivity microphone and noise-canceling technology, providing you with HD high-fidelity stereo sound quality
• The magnetic design makes it easy to be auto magnetically absorbed together when not in use. You will not have the bother of losing the earphone

Specification:

• Model number: K18
• Wireless standard: 5.1
• Charging time: 3H
• Working hours: 100H
• Charging interface: USB
• Battery capacity: 800mAh
• Transmission range: 10m