500mAH Foldable Bluetooth Wireless Headphone Stereo Phone PC Music Gaming Headset with Built-in Mic P1 - Red Features: High-fidelity sound with high-definition microphone Adjustable headband, foldable design, easy to carry Bluetooth 5.0 + 3.5mm AUX connection, you can choose the connection method by yourself and switch between wired and wireless 500mAh battery, music time is about 15 hours, and charging time is about 2 hours Headphone functions: volume adjustment, switching songs, call answering, call rejection, hanging up, Bluetooth playback, hands-free call, call replay, Bluetooth connection, voice prompt, power display, support memory card Specifications: Bluetooth version: Bluetooth V5.0 Transmission distance: 10 meters Usage time: 10–15 hours Standby time: 180 hours Battery capacity: 3.7V/500mAH Speaker size: 40mm Sensitivity: 115db Impedance: 32ohm Frequency response: 2.402Ghz GHz to 2.480 GHz Rated power: 15mWx2 Package Included: 1 x Bluetooth Headphone 1 x Aud