Fast Charge Sport Magnetic Wireless earbuds neckband Headphones Cheap Earphone Auriculares Audifonos For Smartphone | ||||||||
Operating voltage | 3.3 V~4.2 V | |||||||
Hours of service | about 480 hours | |||||||
length of use | 20-25 hours | |||||||
Transmission range | 2.40 GHz~2.48 GHz | |||||||
Sensitivity | 98+3 dB | |||||||
Delivery time | Samples:within 5-7 days | |||||||
Others | Design Service is available |