Otium Noise Cancelling Headphones, Wireless Headphones Over Ear Bluetooth Headphones with Mic Deep Bass, Foldable Comfortable Earpads 30H Playtime for Travel/Work/TV/Computer/Cellphone;

No Noise, No Wire. Better noise cancellation, Better sound quality, More comfort, More enjoyment- Built to spoil your ears

Professional ANC(Automatic Noise Canceller) System
Equipped with world class noise cancellation system, the headphones can effectively eliminates background noise and let you indulge yourself with the great sound, whether you’re travelling in an airport, sitting in a train, or walking on crowded streets, you just need to turn on the ANC button.

Adjustable Fit, Maximum Comfort
With 90° swiveling ear cups, super soft protein ear pads, and ergonomic headband, the materials used ensure minimum weight and maximum comfort for long term wearing.
Gentle Reminder: In order to get better hearing enjoyment, and keep the head comfortable, please take off the headphone every 1-2 hours to get your ears relax and protect them from muggy environment in use.

Supreme Sound Without Distraction
Proprietary 40mm large-aperture driver stream extra bass, pristine low mids, and crisp treble, you can take clear hands-free calls with the CVC microphones!

More Stable Battery Life.
20 hours play time per full charge in ANC Mode and up to 25 hours play time in Bluetooth Mode, you can listen to your favorite music, watch a movie and still have plenty of power left.
Get a full charge in just 1.5-2.5 hours by plugging the included USB cable into any mobile device with a powered port or a wall charger. The standby time is more than 250 hours.
Note: It is strongly recommended fully charging for the first use.

The goal that provides Customers with better sound quality, is our constant pursuit
Features
Speaker Diameter: 40±0.3mm
Sensitivity: 94dB ± 3dB（1K，1mW)
Impedance: 32Ω±15%
Frequency Range: 20-20KHz
Extendable headband: 30mm
Battery Capacity: 500mAH
Charge Time: 1-2 hours
Standby Time: 300 hours
Playing Time(BT+ANC): 20+ hours
Additional wired Connection: 3.5mm

What's In The Box:
1* ANC bluetooth headphones
1* USB cable
1* Audio cable
1* User Manual
1* Zip Case