Cisco Systems Headset 521 Single Ear Type Noise Reduction Function Ergonomic Design for Comfort Wired Online Center (Cisco) Long-Term Conference/Call

---------------------------------------------------------------------- 【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.

【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary.

【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product.

【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer. ---------------------------------------------------------------------- [Recommended for:] High-quality sound and an ergonomic design that allows you to wear it all day without getting tired, making it ideal for use in online meetings and call centers. [Audio function] The "unidirectional microphone" focuses on the user's voice, minimizing background noise and delivering your voice clearly. [Noise isolation function] Even in a busy open work environment, the "noise isolation function" allows you to concentrate without worrying about surrounding sounds. 【Inline USB Adapter】The handheld controller allows you to connect your 3.5mm headset to USB and easily access key call control functions such as answer call, end call, reject call, hold/resume (for multiple calls), mute/unmute, volume up, volume down. [Included items] Product body, inline USB adapter