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• Jabra Evolve 40 MS
• The Jabra Evolve 40 is a professional headset designed to enhance concentration and improve conversation.　High-quality noise cancelling technology effectively creates a concentration zone to help you stay focused, so you can work calmly in a noisy, open office.
• The control unit has a USB adapter with a 3.5 mm jack that makes it easy to connect the headset to your PC, smartphone, or tablet Use the busy light to tell if you're on a call If you're not on a call or just listening to music, you can store the microphone boom arm in the headbandLeather ear cushionEasy setup with plug and playThe Jabra Evolve 40 comes with a Mono (; RS 893-7519 RS 893) and Duo (RS RS -7519); RS 893-7528 RS 893-7528) is available.