Life-Tech Hands-Free Stereo Earphones Earbuds Headset w/ Mic For RCA A1 4.7" / M1 4.0" / G1 5.5" HD In ear design directs high quality sound into ear for high fidelity premium stereo sound Standard 3.5mm plug fits all cell phones with 3.5mm jack Built-in microphone allow you to freely talk On/Off switch to end call Tangle free cord