Srhythm Wireless Bluetooth Headphones are made by a top R&D team. It is a classical product of Noise Cancelling Bluetooth Headphones that tested by a large number of customers and has a great reputation. Overall, NC35 is an excellent Active Noise Cancelling Bluetooth Headphone. 

Structure: NC-35 Bluetooth headphones are foldable and easily carried when traveling or in outdoor activities.It is durable because of the high-strength plastic and inner metal connection shaft. Appearance: NC-35 wireless headphones are suitable for most people especially for business persons because of the classic designs. 

Comfort: NC-35 over-ear headphones' headband and earmuffs are made with extremely soft memory high protein leather. Materials&technology ensures long-time comfortable wearing. The advanced sewing process makes sound isolation better. NC-35 is a valuable deal and classic product for the ANC Bluetooth wireless headphone. 

Note: 

1. Connect to the standard USB port, pls don't use a fast charger

2. Audio cable can be used when low battery 

Top Q&A: 

1. Why low sound? Because perhaps affected by devices/mobile.Pls, increase mobile/devices' and headphone' volume to try again.

 2. Why no difference with ANC "on"VS" off"? Pls make sure that you start ANC and use it in the noisy environment. You will feel much difference. 

3. How to turn off the headphones? Please note the ANC and Bluetooth show on the same indicator light.ANC with green light, Bluetooth with blue light. If you need to turn off/on bluetooth, please make sure you turned off ANC first.

Features:

[World-Leading Digital Active Noise Cancelling (ANC)] Advanced noise cancellation technology effectively quells 90% stable low frequency background noise when in noisy environment airplane/subway/car/office/factory/crowd etc.(not 100% sound canceling.).ANC works well in both wired and wireless mode.ANC ON,World OFF.To be better and better noise reducing is our goal

[Elegant Appearance & Tiny Lightweight Folding] Light for head relaxing and portable for traveling storage. Durable headset 0.4 lb ONLY! 100°-120°ear-cups’ multi-angle flexible rotation with adjustable headband of 8 levels’ size stretch. Ergonomic international standard size

[Fast Charge&50+Hours Enjoyment] <