**Specifications:**
**Brand:** JBL
**Model:** TUNE670NC
**Product Features:** Upgraded version, single microphone, dual microphone FF+FB, ANC noise reduction, FF external feedback noise reduction, digital adaptive noise reduction
**Music Playback Time:** Approximately 55 hours (ANC off), approximately 70 hours (ANC off)
**Fast Charging:** 5 minutes for approximately 2 hours playback, 5 minutes for approximately 3 hours playback
**Bluetooth Version:** Bluetooth 5.0, Bluetooth 5.3
**APP Control:** Not supported, supported
**Audio Curve Adjustment:** Not supported, supported
**Environment Awareness:** Not supported, supported
**Voice Awareness:** Not supported, supported
**Additional Features:** Red Dot Design Award 2023, legendary sound quality, adaptive noise cancellation, EQ customization through JBL Headphones app
**Frequency Response Range:** Traffic noise reduction in low-frequency range, reduction of daily noise in mid to high-frequency range
**Sound Pressure:** Legendary sound quality, immersive music experience, EQ customization
**Battery Life:** Up to 70 hours, fast charging support
**Auto Power Off:** Customizable audio/video mode auto-off settings
**Wired Connection:** Type-C interface supported
**Package Contents:** 1 JBL Tune670NC headphones, 1 USB-C charging cable, 1 detachable audio cable, 1 warranty/user guide
**Control Buttons:** Power on/off, volume control, play/pause, voice assistant activation, ANC/environment awareness toggle, call management
**How to Install JBL Headphones App:** Android users can download from Baidu Mobile Assistant, Apple users can download from the App Store
**How to Connect Bluetooth:** Long press power button for 2 seconds to turn on, search for Bluetooth on your phone and select "JBL TUNE670NC" to connect
**Button Functions:** Long press for next track, single click for volume adjustment, double click for previous track, etc. (additional functions available with app)
Note: Actual battery life may vary based on audio content and volume levels.
<style>.ssd-module-wrap{position:relative;margin:0 auto;width:750px;text-align:left;background-color:#fff}.ssd-module-wrap .ssd-module,.ssd-module-wrap .ssd-module-heading{width:750px;position:relative;overflow:hidden}.ssd-module-wrap .ssd-floor-activity{max-height:380px;overflow:hidden}.ssd-module-wrap .ssd-floor-shopPrior{max-height:900px;overflow:hidden}.ssd-module-wrap .ssd-floor-authorize{max-height:300px;overflow:hidden}.ssd-module-wrap .ssd-floor-reminder{max-height:4000px;overflow:hidden}.ssd-module-wrap .ssd-module{background-repeat:no-repeat;background-position:left top;background-size:100% 100%}.ssd-module-wrap .ssd-module-heading{background-repeat:no-repeat;background-position:left center;background-size:100% 100%}.ssd-module-wrap .ssd-module-heading .ssd-module-heading-layout{display:inline-block}.ssd-module-wrap .ssd-module-heading .ssd-widget-heading-ch{float:left;display:inline-block;margin:0 6px 0 15px;height:100%}.ssd-module-wrap .ssd-module-heading .ssd-widget-heading-en{float:left;display:inline-block;margin:0 15px 0 6px;height:100%}.ssd-module-wrap .ssd-widget-circle,.ssd-module-wrap .ssd-widget-line,.ssd-module-wrap .ssd-widget-pic,.ssd-module-wrap .ssd-widget-rectangle,.ssd-module-wrap .ssd-widget-table,.ssd-module-wrap .ssd-widget-text,.ssd-module-wrap .ssd-widget-triangle{position:absolute;overflow:hidden}.ssd-module-wrap .ssd-widget-rectangle{box-sizing:border-box;-moz-box-sizing:border-box;-webkit-box-sizing:border-box}.ssd-module-wrap .ssd-widget-triangle svg{width:100%;height:100%}.ssd-module-wrap .ssd-widget-table table{width:100%;height:100%}.ssd-module-wrap .ssd-widget-table td{position:relative;white-space:pre-line;word-break:break-all}.ssd-module-wrap .ssd-widget-pic img{display:block;width:100%;height:100%}.ssd-module-wrap .ssd-widget-text{line-height:1.5;word-break:break-all}.ssd-module-wrap .ssd-widget-text span{display:block;overflow:hidden;width:100%;height:100%;padding:0;margin:0;word-break:break-all;word-wrap:break-word;white-space:normal}.ssd-module-wrap .ssd-widget-link{position:absolute;left:0;top:0;width:100%;height:100%;background:0 0;z-index:100}.ssd-module-wrap .ssd-cell-text{position:absolute;top:0;left:0;right:0;width:100%;height:100%;overflow:auto}.ssd-module-wrap .ssd-show{display:block}.ssd-module-wrap .ssd-hide{display:none}.ssd-module-wrap .M169511658840233{width:750px; background-color:#cbcbcb; background-size:100% 100%; background-image:url(http://img30.360buyimg.com/sku/jfs/t1/237076/11/26490/41016/66ec4caeF8653cb14/bb573b198d0d0f90.png); height:1124px}
.ssd-module-wrap .M169511658841034{width:750px; background-color:#b3b3b3; background-size:100% 100%; background-image:url(http://img30.360buyimg.com/sku/jfs/t1/109962/16/51909/94807/66ec4cbaF9f86112f/52ec2c4e2b849648.png); height:1280px}
.ssd-module-wrap .M17207698085481{width:750px; background-color:#f2f2f2; background-size:100% 100%; ; height:1268px}
.ssd-module-wrap .M17207698085592{width:750px; background-color:#f2f2f2; background-size:100% 100%; ; height:1185px}
.ssd-module-wrap .M17207698085674{width:750px; background-color:#cbcbcb; background-size:100% 100%; background-image:url(http://img30.360buyimg.com/sku/jfs/t1/129753/37/45138/238547/66ec4cedFa8792bee/6c15dccbb6c01891.png); height:1291px}
.ssd-module-wrap .M17207698085775{width:750px; background-color:#cbcbcb; background-size:100% 100%; background-image:url(http://img30.360buyimg.com/sku/jfs/t1/128158/4/44652/369787/66ec4cffF24bfefc4/fc415f639ba90e28.png); height:1287px}
.ssd-module-wrap .M17207698085857{width:750px; background-color:#d7d7d7; background-size:100% 100%; ; height:1164px}
.ssd-module-wrap .M17207698085948{width:750px; background-color:#b3b3b3; background-size:100% 100%; background-image:url(http://img30.360buyimg.com/sku/jfs/t1/105820/25/46140/295358/66ec4d0dF6e4a9a0b/838a7bdebdc5c51d.png); height:1440px}
.ssd-module-wrap .M17207698086069{width:750px; background-color:#b3b3b3; background-size:100% 100%; background-image:url(http://img30.360buyimg.com/sku/jfs/t1/71765/39/27485/33721/66ec4d31F40078959/92c6062a8e4e3ece.png); height:1202px}
.ssd-module-wrap .M172076980861611{width:750px; background-color:#e9e9e9; background-size:100% 100%; background-image:url(http://img30.360buyimg.com/sku/jfs/t1/247096/35/19254/202078/66ec4d3fF6cbae32f/a8f0be33c449e134.png); height:1335px}
.ssd-module-wrap .M172076980862712{width:750px; background-color:#b3b3b3; background-size:100% 100%; ; height:1266px}
.ssd-module-wrap .M172076980863613{width:750px; background-color:#cbcbcb; background-size:100% 100%; ; height:1273px}
.ssd-module-wrap .M172076980864714{width:750px; background-color:#f2f2f2; background-size:100% 100%; background-image:url(http://img30.360buyimg.com/sku/jfs/t1/227762/4/27592/412426/66ec4d77Fd0267509/6895623a723b3b0d.png); height:1339px}
.ssd-module-wrap .M172076980866015{width:750px; background-color:#b3b3b3; background-size:100% 100%; background-image:url(http://img30.360buyimg.com/sku/jfs/t1/189819/26/46658/309017/66ec4d8dF907d303a/ad95b117beb66a36.png); height:1269px}
.ssd-module-wrap .M172076980867016{width:750px; background-color:#d7d7d7; background-size:100% 100%; ; height:1140px}
.ssd-module-wrap .M172076980868217{width:750px; background-color:#d7d7d7; background-size:100% 100%; ; height:1421px}
.ssd-module-wrap .M172076980869519{width:750px; background-color:#cbcbcb; background-size:100% 100%; background-image:url(http://img30.360buyimg.com/sku/jfs/t1/249223/2/19374/93425/66ec4db8F48d3e9cb/4fa46bdf4b4f7395.png); height:1283px}
.ssd-module-wrap .M172076980870620{width:750px; background-color:#f2f2f2; background-size:100% 100%; background-image:url(http://img30.360buyimg.com/sku/jfs/t1/114400/28/42112/221324/66ec4dc8F74b0ad70/c8968ec13c897eab.png); height:1201px}
.ssd-module-wrap .M17211877318611{width:750px; background-color:#cbcbcb; background-size:100% 100%; ; height:1157px}
.ssd-module-wrap .M17211877318742{width:750px; background-color:#f2f2f2; background-size:100% 100%; ; height:996px}
.ssd-module-wrap .M17211877318873{width:750px; background-color:#b3b3b3; background-size:100% 100%; ; height:674px}
.ssd-module-wrap .M17211877319014{width:750px; background-color:#cbcbcb; background-size:100% 100%; ; height:939px}
</style>