The following 4-item set, with 1 receiver: One unifying receiver is connected to ①, ②, and ③. ① Logitech Wireless Keyboard K275 Minor scratches, but works well. ② Logitech Wireless Mouse M705 Shows signs of use as pictured, but works well. ③ Logitech Wireless Mouse M325 How about as a spare? (Consider it a bonus, as it shows significant wear.) ④ Sanwa Supply Wired USB Headset MM-HSUSB17BK In relatively good condition. Works well. Each item comes with freshly replaced batteries. #Logicool #SANWA SUPPLY