Specifications:
Bluetooth version: low power V5.0
Supporting protocols: A2DP, AVRXP, HFP, HSP
Frequency range: 2.402GHZ~2.480GHz ISM Band
Bluetooth transmission distance: 10 meters (no obstacles)
Sensitivity: ≥80dB
Battery type: polymer lithium battery
Headphone battery capacity: 60mAh
Charging box battery capacity: 2200mAh
Input current voltage: 5V 1A
Headphone charging time: 1-2 Hours
Charging bin charging time: 2-3 Hours
Headphones full of continuous music playback time: about 5-6 Hours
Headphones full power continuous talk time: about 4-5 Hours
Standby time (with mobile phone standby): about 300 Hours
Support system: for IOS/Android/Mac OS/Windows is fully compatible with all mobile phones and Bluetooth devices

Warm Tip:
Please full charged the earphone and charging case at the first use.
Please use 5V 1A adaptor to charge the case, otherwise it may damage the earbuds and charging case.
This product contains built-in lithium battery, do not expose under strong sunlight and throw into fire in case of explosion. Deal with batteries in accordance with local regulations, do not treat as household waste.
The user can not remove or replace the battery, which is dangerous and may damage the product. Please read this manual carefully before using the product and keep it in a safe place.

Packing List:
1*TWS Bluetooth Earphones With Charging Box
1*Charge Cable
1*Instruction Manual