• Bluetooth-compatible connection, brings you high-fidelity sound quality and stable performance

• 60mAh rechargeable battery gives it a continuous working time of about 7h after fully charged

• Unique neckband design improves comfort and acoustics while also keeping earbuds in places

• With magnetic suction function, and when the headphone is not in use, you can easily wear the earphone on the neck, won't fall off

• With its ergonomic in-ear design, comfortable to wear

• Great for running, hiking, cycling, car driving, business occasion, etc, enjoy superb sound quality instantly 

Specification:

• Frequency response: 20Hz~20KHz
• Working range: about 10m
• Battery voltage: 3.7V
• Battery capacity: 60mAh (rechargeable lithium battery)
• Charging time: about 1.5 hours
• Working time: about 7 hours
• Impedance: 32Ω
• Sensitivity: 90±3dB
• Horn diameter: 10mm
• Rated power: 3mW
• Maximum power: 5mW