business. The company also announced an intent to offer free one-year trials of its body camera products and Evidence.com services to U.S. law enforcement agencies. While the Taser product line still contributes to a significant portion of its revenue, the company's technologies business had seen major gains. As of 2017, they comprised a quarter of the company's business, while Axon cameras had a market share of 85% among police departments in the United States' major cities. The rebranding was also intended to help distance the company from the negative stigma surrounding the Taser brand, with Smith acknowledging that they were "a bit of a distraction" when recruiting employees for its technology business. In May 2018, Axon acquired competitor VieVu for $4.6 million in cash and $2.5 million in common stock. Hardware Taser Law enforcement/military models There are three law enforcement/military models currently available: Taser X26P: An all-digital, single-shot capacity electrical weapon for law enforcement or military personnel. Taser X2: An all-digital, two-shot capacity electrical weapon for law enforcement or military personnel. Taser 7: An all-digital, two-shot capacity electrical weapon for law enforcement or military personnel. Consumer models Taser currently has three self-defense weapons for sale. They are the Taser Pulse, the Taser Pulse+, and the Taser Strikelight. Body cameras Axon Pro Taser's original body-worn camera, the Axon Pro, was introduced in 2009. The camera consists of three components, a head-mounted camera, a controller, and a monitor to review video recordings. Second-generation models The second generation of Axon body cameras were simpler in form and function than the Axon Pro, removing the bulky monitor in favor of pairing with mobile phones. Many of the features introduced in these cameras, such as the pre-event buffer, a method of capturing video from before the record button was pressed, have become common requirements in body-worn camera requests for proposal. The Axon Flex and Body only record video in standard definition (SD). Axon Flex: The Axon Flex, a point-of-view camera, was released in 2012. The Flex camera system consists of a camera attached to an external battery pack / controller. In contrast to the Axon Pro, the Axon Flex does not have a screen to play back video. Instead, Taser offers a mobile application (Axon View) that connects to the camera using Bluetooth. Like the previous model, Axon Flex videos are stored in Evidence.com, Taser's cloud-hosted evidence management system. The camera features multiple mounting options,