<p><strong>Srhythm Wireless Bluetooth Headphones are made by a top R&amp;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, NC25 is an excellent Active Noise Cancelling Bluetooth Headphone.&nbsp;</strong></p><p><strong><em>Structure:&nbsp;NC-25 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.&nbsp;</em></strong></p><p><strong><em>Appearance:&nbsp;NC-25 wireless headphones are suitable for most people especially for business persons because of the classic designs.&nbsp;</em></strong></p><p><strong><em>Comfort:&nbsp;NC-25 over-ear headphones' headbands and earmuffs are made with extremely soft memory high protein leather. Materials&amp;technology ensure a long time comfortable wearing. The advanced sewing process makes sound isolation better. NC-25 is a valuable deal and classic product for the ANC Bluetooth wireless headphone.&nbsp;</em></strong></p><p><strong></strong></p><p><br></p><p><strong>Features:</strong></p><p><strong>?? [Digital Active Noise Cancelling Technology (ANC)]&nbsp;Professional advanced noise cancellation silences up to 90% of machine noise. Cancels noise from aircraft, subways, cars and crowds, so you can focus on what are you doing. (Kindly Note: it’s NOT 100% noise cancellation, Human talking CAN NOT be elimated and ANC is less effective in quiet environments).ANC Works well both wired and wireless</strong></p><p><strong>?? [Provides High-Res Audio in Silence]&nbsp;Features a dual 40 mm HD high-resolution audio driver, along with 360° omnidirectional noise-cancelling ANC technology, a high-response diaphragm, lightweight voice coil. Delivers peerless sound with no interruptions. Sometimes quality just needs to be heard. Find the rhythm of your soul</strong></p><p><strong>?? [50+ Hours Music Enjoyment]&nbsp;A built-in 1000mAh battery won't allow your headphones power off, you can enjoy your world without noise for 50 hours' long time with a single charge. Or plug in 3.5mm stereo audio cable to prolong using time when battery is low</strong></p><p><strong>?? [Unique Foldable Lightweight &amp; Ergonomic Design]&nbsp;The professional-grade protein ear-pads,100° inward rotation and 120° inward folding ear-cups with superb LIGHTWEIGHT only 0.4 lb for maximum comfort, even during long periods of use. Folds away compactly for easy storage when travelling. ergonomic headsets' structure and multi-level adjustable headband to get the best suitable size for you</strong></p><p><strong>?? [Low latency gaming mode]&nbsp;Only press the Multi-function button three times, enter the low latency gaming mode. Enable you to experience the immersive gaming environment with seamless music</strong></p><p><strong>Note:&nbsp;</strong></p><p><strong>1. Connect to the standard USB port, pls don't use a fast charger&nbsp;</strong></p><p><strong>2. Audio cable can be used when low battery&nbsp;</strong></p><p><strong>Top Q&amp;A:&nbsp;</strong></p><p><strong>1. Why low sound? Because perhaps affected by devices/mobile. Pls increase mobile/devices' and headphone' volume to try again.&nbsp;</strong></p><p><strong>2. Why no difference with ANC "on "VS" off" Pls make sure that you start ANC and use it in a noisy environment. You will feel much difference.</strong></p><p><strong>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.</strong></p><p><br></p>