**Specifications:**
**Brand:** JBL
**Model:** TUNE670NC
**Product Features:** Upgraded version, current products include models TUNE660NC and TUNE670NC
**Microphone:** Single microphone for TUNE660NC, dual microphones (FF+FB) for TUNE670NC
**Active Noise Cancellation (ANC):** Yes
**Feedback Feedforward (FF) ANC:** Yes
**External Feedback (FB) ANC:** Yes
**Digital Adaptive Noise Cancellation:** Yes
**Music Playback Time:** Approximately 55 hours (without ANC) for TUNE660NC, approximately 70 hours (without ANC) for TUNE670NC
**Fast Charging:** 5 minutes for approximately 2 hours of playback for TUNE660NC, 5 minutes for approximately 3 hours of playback for TUNE670NC
**Bluetooth Version:** Bluetooth 5.0 for TUNE660NC, Bluetooth 5.3 for TUNE670NC
**APP Control:** Not supported for TUNE660NC, supported for TUNE670NC
**Audio Curve Adjustment:** Not supported for TUNE660NC, supported for TUNE670NC
**Ambient Awareness:** Not supported for TUNE660NC, supported for TUNE670NC
**Voice Awareness:** Not supported for TUNE660NC, supported for TUNE670NC
**Additional Features:** EnjoyMusic, legendary sound quality, multiple color options, Red Dot Design Award 2023 winner
**Package Contents:** 1 JBL TUNE670NC Headphones, 1 USB-C Charging Cable, 1 Detachable Audio Cable, 1 Warranty/Quick Start Guide
**Additional Information:** JBL is a renowned brand with a history of 78 years in the audio industry. The brand has received numerous awards and recognitions, including Grammy Awards and Oscars Technical Achievement Awards. JBL headphones are known for their exceptional sound quality and innovative features, catering to a wide range of audio needs. JBL continues to push the boundaries of audio technology to deliver outstanding listening experiences to its customers.