The Green Lion Sunstone Headphone is the best option for those who need to listen to music daily. This headphone is wireless and can be wired using an AUX input. It has version 5.3 Bluetooth, which ensures a stable and strong connection within a 10-meter range. Lastly, this headphone only takes 2.5 hours to be charged up and can play music for up to 36 hours on Bluetooth mode. All these features make the Green Lion Sunstone Headphone the best headphone for the gym, outdoors, and even indoors.