Fully functional and tested. They sound great.
Product CodeWF-C500 GZ.
SONY Wireless Earphones WF-C500 with Microphone Bluetooth Ice Green WF-C500 GZ
DSEE restores high frequency sounds lost in compression.Specific uses for product : Sports and Exercise Up to 10hr battery life, total up to 20hr with
Sony WF-C500 Truly Wireless In-Ear Bluetooth Earbud Headphones with Mic and IPX4 water resistance, Black
WF-C500 Wireless Bluetooth Earbuds
Sony WF-C500 True Wireless Bluetooth In-Ear Headphone Green WFC500 27242922709
Discover the freedom of Bluetooth connectivity with the compact WF-C500 truly wireless earbuds, combining uncompromising sound with great battery
Sony WF-C500 True Wireless In-Ear Headphone in Green With Cleaning kit Bolt Axtion Bundle Like New
WF-C500 Wireless Bluetooth Earbuds
Sony WF-C500 Truly Wireless In-Ear Bluetooth Earbud Headphones with Mic and IPX4 water resistance, Black : Electronics
Sony WF-C500 review: For commuters and athletes - SoundGuys
Their seemingly customized fit works with IPX4 sweat and splash resistance to make the C500 headphones an ideal option for use when working out. With
Sony WF-C500 True Wireless In-Ear Headphone (Ice Green) - WFC500/G