Sony WH-CH520 Compact Easy Carrying Wireless Bluetooth On-Ear Headphones with Microphone (Black) Sony WH-CH520 Compact Easy Carrying Wireless Bluetooth On-Ear Headphones keep your music playing all day with a battery life that delivers up to 50 hours of power. USB Type-C quick charging gives up to 90 mins of playback from 3 minutes of charge. | Wh | CH520 Bluetooth On-Ear Headphones with Sony EX15 Earbuds | Black | Best Buy