Choose Wired When Calls Stay at Your Desk
H600 and H602 list USB-C, USB-A and 3.5 mm options; H881 and H882 list USB and 3.5 mm. Wired models avoid charging between calls and suit a fixed computer workstation.
Match the complete audio-and-microphone path, not just the plug shape. A 3.5 mm headphone-only jack may not accept microphone input, and call-control behavior can depend on the connection or calling application.
Choose Bluetooth When You Need to Move
WK881BT and WK882BT are Bluetooth 5.2 work headsets with listed battery life up to 45 hours. Choose the single-ear or dual-ear version by how much room awareness you need, and check whether the selected product variant includes a charging dock.
Their specifications also mention USB, but that does not establish USB wired-audio support. Confirm the actual Bluetooth call-and-microphone path, software support and charging arrangement. Bluetooth alone does not guarantee compatibility with a desk phone.