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

• 500mAh rechargeable battery gives it a continuous working time of about 48-58h and standby time of up to 150 days

• Fully meet your needs for battery life, and will provide you with protection for enjoying wonderful music for several days during travel or sports

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

• The earbuds are rated IPX5. It can prevent sweat and rain. You can be free to enjoy jogging, cycling, driving, hiking, bodybuilding, and other city sports

• 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

Specification:

• Power amplifier output power: RMS 2x18MW (THD=10%)
• Power amplifier signal-to-noise ratio: ≥90dB
• Input voltage: 3.7V rechargeable lithium battery
• Playing time: 48 hours at minimum volume
• Charging time: 3 hours
• Charging input voltage: DC 5V, 500mAh
• Speaker specifications: 2x16Ω 20MW Φ10mm
• Frequency response range: 20Hz-20KHz
• Sensitivity: ≥100db±2db
• Signal-to-noise ratio: ≥80Db transmit/receive frequency: 2.4-2.48GHz
• Wireless distance: 10 meters (barrier-free)