Item 4. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

Our management, with the participation of the Chief Executive Officer and Chief Financial Officer (the Certifying Officers), evaluated the effectiveness of the Company's disclosure controls and procedures (as defined in Rules 13a-15(e) or 15d-15(e) promulgated under the Securities Exchange Act of 1934, as amended) on June 30, 2022. Based on that evaluation, the Certifying Officers concluded the Company's disclosure controls and procedures were effective as of June 30, 2022.

Changes in Internal Control Over Financial Reporting

There was no change to our internal control over financial reporting during the six months 2022 that materially affected, or is reasonably likely to materially affect, our internal control over financial reporting. In February 2022 we completed the acquisition of Vocera and are currently integrating Vocera into our operations, compliance programs and internal control processes. Vocera constituted approximately 8.5% of our total assets as of June 30, 2022, including the goodwill and intangible assets recorded as part of the purchase price allocation and approximately 1% of our net sales in the six months ended June 30, 2022. United States Securities and Exchange Commission guidance allows companies to exclude acquisitions from their assessment of the internal control over financial reporting during the first year following an acquisition while integrating the acquired company. We have excluded the acquired operations of Vocera from our assessment of the Company's internal control over financial reporting.

PART II – OTHER INFORMATION