JBL TUNE 600BTNC Wireless Noise Cancellation On-Ear Headphones – Certified Refurbished Description Tune out the world around you with the JBL TUNE 600BTNC Wireless On-Ear Headphones. Featuring an on-ear design for passive noise cancellation, as well as active noise-canceling technology, the TUNE 600BTNC can drastically reduce ambient noise, such as a crying baby or nearby conversations. With the world around you quieted down, you can blissfully focus on your audio. You can transmit that audio wirelessly via Bluetooth from compatible devices, such as a smartphone or tablet. Thanks to the built-in LiPo battery, you can enjoy 12 hours of use with both Bluetooth and noise cancellation turned on. Getting back to a full charge only takes 2 hours. Whether you're on the bus or strolling down the street, you don't have to fumble with your phone if you get a call while listening to music. The earcup has a built-in microphone and 3-button remote that lets you take calls, switching back and forth between functions with the simple press of a button. Features 32mm Drivers with JBL Pure Bass Sound Built-In Rechargeable LiPo Battery Up to 12 Hours of Playback with BT+NC 2-Hour Recharge Time JBL Pure Bass Sound With 32mm drivers, these headphones deliver deep and powerful JBL Pure Bass Sound to your favorite music. Keep Listening with Wired Mode The music doesn't have to stop just because your battery did. In Wired Mode, you can use the JBL TUNE 600BTNC like any other traditional pair of headphones. Simply plug in the included, detachable headphone cable. Lightweight and Foldable The TUNE 600BTNC headphones feature a foldable design that helps you easily store them when not in use. The lightweight materials used are designed to make these headphones comfortable over long periods of use. Specifications Headphone Driver Size 1.26" / 32mm Active Noise Cancellation Yes Design On-Ear (Supra-aural) General Frequency Response 20 Hz to 20 kHz Sensitivity 100 dB Impedance 32 Ohms Maximum Sound Pressure Level (SPL) 95 dB Controls/Microphone Location Earpiece (Side Unspecified) Foldable Yes Microphone Number of Mics 1 Sensitivity -24 dB at 1 kHz Wireless Connectivity Bluetooth Profiles HFP 1.6 HSP 1.2 A2DP 1.2 AVRCP 1.5 Bluetooth 4 Frequency 2.4 GHz (2402 to 2480 MHz) Transmitter Power 4 dBm Bluetooth Transmitter Modulation GFSK, 8DPSK, π/4 DQPSK NFC No Wired Connectivity Audio Connector to Source 1/8" / 3.5 mm TRRS Angled Charging Port Micro-USB Battery Battery Chemistry Lithium-Ion Polymer (LiPo) Capacity (mAh) 610 mAh Runtime 12 Hours (BT+ANC) 22 Hours (Talk) 22 Hours (Music) 30 Hours (ANC) Recharge Time 2 Hour Physical IP Rating None LED Indicator Yes Weight 6.1oz / 173g Packaging Info Package Weight 0.835 lb Box Dimensions (LxWxH) 9.05 x 8.1 x 1.95"