This in-ear stereo headset with microphone offers hands-free convenience for calls and audio on the go. The integrated earpiece and microphone deliver clear sound quality, while the cord-mounted on/off button allows you to answer and end calls with ease. Compatible with devices featuring a 3.5mm audio jack, including many smartphones and computers, this headset keeps your hands free whether you're driving, working, or multitasking. The lightweight design ensures comfortable wear during extended use. Each set includes a single headset with a durable cord and built-in controls. The simple plug-and-play design requires no additional setup, making it ready to use right out of the package. This product is sold as a 4-pack, providing multiple headsets in assorted colors including black, silver, pink, and blue. This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm under Proposition 65. For more information, visit the California Office of Environmental Health Hazard Assessment website.