1. Stereo sound- high quality stereo with rich and 2. Bluetooth wireless connection- upto 10 meters 3. Adjustable headband 4. Cushioned ear cups 5. upto 40 hours of playtime- 6. Wireless / wired connection- backup audio cable to keep listiong when the battery of the wireess connection runs out 7. Voice control – access siri & go google voice to make phone calls, listen to music, set 9. BTversion: 5.0 10. Frequency response: 2.4g 11. Handmade drive : 50mm https://www.rhythmkala.com