Wireless headphones designed for effortless, all day listening. One-touch listening with NFC lets you stream with ease, and a long battery life gives up to 20hrs of playback. A 30mm driver delivers dynamic sound from a compact unit. Make hands-free calls or give voice commands with the built-in microphone. All bass, all day long. 100% original. Wireless streaming with a Bluetooth® connection Wirelessly stream your favorite tracks with a Bluetooth® connection by pairing your smartphone or tablet. NFC™ One-touch for instant connectivity Touch selected NFC™-enabled devices to the on-body N-mark for a quick, seamless connection, then start streaming content via Bluetooth® connection. Enjoy up to 20 hours of wireless battery life Keep your tunes playing throughout the day. A built-in Li-ion battery delivers up to 20 hours of wireless power and is rechargeable via Micro USB. Hear more with 1.18" drivers You can hear more detail, including punchier bass from compact, lightweight units. Easy hands-free calls and voice assistant Speak to your friends, and talk to your voice assistants without even taking your phone out of your pocket or bag. Press and hold the play button on your headphones to activate the voice assistant on Android or iOS and make easy, hands-free calls with the high-quality built-in microphone. Lightweight design A slim, adjustable headband and soft earpads are made to look and feel good Swivel design The earcups swivel flat and can be easily slipped into a bag, so you can transport them securely, wherever you go Size & Weight WEIGHT Approx. 4.94 oz (140 g) General Features HEADPHONE TYPE Closed Dynamic DRIVER UNIT 11.82 in MAGNET Ferrite FREQUENCY RESPONSE (BLUETOOTH® COMMUNICATION) 20 Hz–20,000 Hz (44.1 kHz Sampling) Battery BATTERY CHARGE TIME Approx. 4.5 hrs BATTERY CHARGE METHOD USB Bluetooth® Specification BLUETOOTH® VERSION Version 4.2 EFFECTIVE RANGE Line of sight approx. 30 ft (10 m) FREQUENCY RANGE 2.4 GHz band VOLUME CONTROL Yes WEARING STYLE Circumaural NFC Yes BATTERY LIFE (CONTINUOUS MUSIC PLAYBACK TIME) Max. 20 hrs BATTERY LIFE (WAITING TIME) Max. 200 hrs PROFILE A2DP, AVRCP, HFP, HSP SUPPORTED AUDIO FORMAT(S) SBC, AAC SUPPORTED CONTENT PROTECTION SCMS-T If you have any problems with your order, please, please , please contact me before leaving negative feedback.I am a reasonable person and I try to make my customers happy. I normally answer all emails within 24 hours. Thanks for looking and I hope to do business with you.Thanks again. Delivery details All of our item will be send out with tracking number,you can check it on wed after shipping ,thank you. The quality of our products is guaranteed.