8 hours play. Stereo. Rechargeable. Mic. Compatible with most mobile & audio devices. This item is electronically protected. Compatible with iPhone android tablets. Stereo. In-line Mic. Features & Specifications: (1) Adjustable Headband: Comfortable cushioned fit. (2) Great Sound: Delivers full & clear sound. (3) Control Buttons: Wirelessly control devices. (4) Bluetooth: Wireless listening/control. (5) Rechargeable Battery: Recharge via included USB. (6) Microphone: Hands-free talking. Driver Unit: 40mm. Impedance: 32+/-3 ohms. Frequency: 20Hz-20 KHz. Rated Power: 150mW. Sensitivity: 100dB+/-3dB. Battery: Lithium Ion. Version: Bluetooth 5.0. Playtime: Up to 8 hours of 50% volume. Included USB charging cable.