You can paste this into the Description field:
Sony PlayStation Wireless Gamepad Controller – Used but in good working condition. All buttons, analog sticks, and triggers respond perfectly. Battery holds charge well and wireless connectivity works smoothly. Clean and carefully used with normal signs of wear. Suitable for PlayStation gaming and ready for immediate use. Available for inspection and testing before purchase. Exchange considered. Serious buyers only, please contact me for more details.
If it's a PS4 DualShock 4 controller, you can replace "Gamepad Controller" with "PS4 DualShock 4 Wireless Controller" for a more attractive listing.