Specifications:

Bluetooth 5.3; Chip: JL AC6983D2
Battery Capacity: Charging case 300mAh; 30mAh headphones
Use time: 4 hours; Standby time: 150 hours
Size: 62.5*44*21.4mm; Total weight: 39.5G
Support leader-follower switching, up and down switching, Siri invocation, and other functions
Features:

Bluetooth 5.3 Chip, lower power consumption, lower delay, more stable connection. Master-slave switching technology, reverse connected boot, left and right ear for any use, seamless switching
13mm voice coil unit, biochar fiber composite diaphragm, clear and bright mid-high frequency
Open the cover of the headphones, automatic pairing, the headphones in the charging compartment power off. Support music play/pause, up and down song switch, Sir call operation, binaural calls
Package included:

1x Bluetooth headset
1x Charging cable
1x Instruction
7-Day Warranty (If there are any Manufacturing Defects)