Worn 2-3 times. Selling because I no longer use them. Immediate purchase: Accepted Price negotiation: Accepted The product includes only the main unit. The wireless JBL TUNE500BT headphones let you enjoy powerful JBL Pure Bass sound for up to 16 hours continuously. Featuring 32mm JBL drivers and JBL Pure Bass sound. These easy-to-use headphones provide easy access to the best music anytime. If a call comes in while you're watching a video on another device, the JBL TUNE500BT seamlessly switches to your mobile phone. Bluetooth compatible and designed for comfort, the JBL TUNE500BT headphones connect directly to Siri or Google Now without going through your mobile device. Available in four fresh colors and foldable for easy portability. The JBL TUNE500BT can easily add color to your busy everyday life with music. Sensitivity (dB) 1kHz - 24dBV/Pa Frequency Response 20 Hz - 20 kHz Impedance (Ω) 32.0 Number of Drivers (per side) 1.0 Charging Time (hours) 2 Maximum Playback Time (ANC off/hours/for true wireless, this refers to the earphone unit) 16.0 Maximum Playback Time (hours) 16.0 Continuous Talk Time (hours) 16.0