● S - 501 Bluetooth V4.1 wireless stereo earphone
● Bluetooth version: Bluetooth V4.0
● With volume conctrol and song switch function
● Pick up / hang up / last number repeat
● Connect with two cellphones / three way calling
● Connect two phones at the same time
● Support voice prompts， voice switch both in Chinese and English
● Double earplugs design， better stereo sound effect
● Come with Micro USB cable for charging
● Fully compatible with all types of mobile phones
● Allows you to answer the call and listen to stereo music anytime and anywhere