Specifications:
Frequency Response Range:20-20000Hz
Cable length: 54cm
Resistance: 16Ω
Bluetooth version: 4.0
Standby time: up to 150 hours
Talk time: up to 4 hours
Frequency Response: 13Hz-22.5KHz
Sensitivity: 105dB
Power source: Built in rechargeable Li-ion Battery

Features:
100% Brand new and high quality!
1.Comportable : light weight and sweat proof. As light as 18 grams.
2.PureSound In-ear white noise and listener fatigue reduction.
3.Enjoy wireless music and calls, AM3S Power Bass for an enhanced music experience.
4.Bluetooth Version 4.0+EDR,HEP&A2DP Multi-point supported for 2 devices connection, Human engineering Design Play/Pause (also answer calls),Vol+/-,and next/pervious track buttons, super easy opeartion , good workmanship,BQB Certificated
5.Compatibity: Comes with the recently updated bluetooth 4.0,Compatiable for most bluetooth Smartphones

About us:
OLLIVAN is a well-known trademark owned by Shenzhen Endewo Technology Ltd,
We sell a variety of electronics worldwide and have received large popularities from our customers,
We have been laying much emphasis on Product Quality and Our Service Since establishing this coporation,
We believe that we will be more professional and successful in the field of electronics

More needs,please click here finding us:
https://www.amazon.com/OLLIVAN/b/ref=bl_dp_s_web_14337457011?ie=UTF8&node=14337457011&field- lbr_brands_browse-bin=OLLIVAN

Hope we can make great business with you,thanks for your coming!

• 100% brand new and good quality
• PureSound In-ear white noise and listener fatigue reduction
• Enjoy wireless music and calls, AM3S Power Bass for an enhanced music experience
• Compatibity: Comes with the recently updated bluetooth 4.0,Compatiable for most bluetooth Smartphones
• Our Service: any confusions about us, please just get in touch with us, we are always here to help you out.

100% brand new and good qualityEdward Technology