Specification:
Optional Color: Black， White.
Charging Time: 1-2 hours
Wearing Type: In-ear
Bluetooth Version: 4.0 
Transmission Distance: 10m
Voice Prompt: English/Chinese
Can connect to two phones at the same time.
Display battery level on ios device.

Package Included:
1 X Mini Wireless Bluetooth Earphone 

Operation guide:
1. V-/V+: press once
2. Previous/next song: press the V-/V+ for 1.5s
3. Change language: when the light is red and blue flashing， press the "V-" and "V+" at the same time for 2.5-3s. Voice prompt and then change the language.