Bluetooth version: 5.0 

Protocol mode: A2DP, AVRCP, HSP, HFP 

Prompt tone: English 

Effective distance: 10m-18m 

Noise reduction version: CVC8.0 

Microphone: yes 

Binaural pairing method: automatic pairing after using. 

Waterproof rating: IPX7 

Battery compartment charging interface: Type-c 

Charging voltage: 3.7V 

Resistance: 32Ω 

Headphone battery capacity: 35MAH 

Storage box battery capacity: 400MAH 

Transmission distance: >15m 

Headphone usage time: 3-5 hours (depending on volume) 

Call time: 5 hours 

Play time: 3 hours 

Headphone charging time: 1 hour 

Storage box charging time: 2 hours 

Support system: all Bluetooth-enabled devices and mobile phones 

Color: black, white

Package Included: 

1*Pair of Wireless Earbuds (Left & Right) 

1*Charging Case 

1*Charging Cable 4*Ear cap 

1*User Manual