Openfree JR-OE1 Open-Ear True Wireless Headphones-Dark blue

Name: Open-Ear True Wireless Headphones
Model: JR-OE1
BT version: V5.3
BT range: 10m (barrier-free open environment)
Frequency response range: 20Hz-20KHz
Music time: about 18h (70% volume)
Calling time: about 12h (70% volume)
Headphone battery capacity: 100mAh
Case battery capacity: 600mAh
Headphone charging time: about 1.5h
Case charging time: about 1.5h
Cycle counts: about 2 charging cycles
Case charging port: Type-C
Case charging input: 5V⎓1A
Material: ABS+Silicone
Net weight: an earphone (single) 11g; charging case 65g