Features 1、NOISE CANCELLING PHONE HEADSET: Built in high definition microphone that can be twisted in any direction; makes your voice loud and clear. Provides clear conversations even in noisy environments. Minimizes unwanted background noise for clear conversations. 2、COMFORTABLE AND LIGHTWEIGHT: The conversation headset provides you with an ultra lightweight wearing experience. The soft ear cushions and flexible headband won't put any burden on your ears. The ultra lightweight design ensures you focus on your conversation with long lasting wearing comfort. 3、EASY TO USE: Telephone headset provides USB port, USB C port and 3.5mm three kinds of ports; plug and play, no driver required, easy to use. Support speaker volume adjustment and microphone mute. 4、HIGH DURABILITY: The headset is designed with rugged construction and materials to ensure superb performance and make it sturdy. The long headphone cord provides flexibility for mobility. 5、WIDE COMPATIBILITY: Telephone headset suitable for devices with USB port and 3.5mm port, ideal for home and offices, call centers, telemarketing, insurance, customer service, teleconferencing and more. Specification Item Type: Telephone Headset Material: ABS Color: Black Type: Single Ear Function: Support Speaker Volume Adjustment, Microphone Mute Scope of Application: For PC Computers, Laptops, Cell Phones, Tablets Speaker Parameters: Sensitivity: 105±3dB (at 178mV 1KHz) Voice Coil Impedance: 150±15Ω (at 1KHZ) Frequency Characteristics: 100Hz-10KHz Distortion: ≤5% (at 178 mV 1KHZ) Microphone Parameters: Directivity: Single Pointing Sensitivity: -40±2dB (2.0V, 2.2KΩ, 1KHz) Distortion: ≤ 5% (at 4.5V 2.2KΩ 1KHZ) Frequency Characteristics: 200Hz-6KHz Current Consumption: 100-500μA Package List 1 x Headset 1 x USB to USB C Adapter 1 x User Manual