HP x4000 Wireless Mouse (Winter Blue) with Laser Sensor H1D34AA#ABA Winter blue USB Wireless Receiver with Laser Sensor (1600 CPI max) 2.4 GHz Wireless; HP Link-5 Technology - Walmart.com
HP Original Receiver Mouse X4000 H2L63AA 3CY37PA Comfort Grip | eBay
Amazon.com: HP x4000b Bluetooth Mouse - Matte Black
HP Original Receiver Mouse X4000 H2L63AA 3CY37PA Comfort Grip | eBay