Wi Digital Wi-ASPEL AudioStream Pro EL Smart Pocket Portable Stereo Digital Wireless Earset and Lavalier Microphone System with USB Interface The included high-end, professional grade, ultra-thin cardioid Ear set microphone easily accommodates alternative mounting such as left and right ear placement Proactively invisible 0.12 inch in capsule diameter, 20Hz -20 kHz, 140 dB SPL max omnidirectional lavalier microphone lets you capture superb vocals and amazing ambient sounds easily and accurately. Provides the elegance of wireless freedom to professional in-ear personal monitors and conventional studio monitor headphones with exceptional sound experience to match your passion for your music. Wirelessly connect an ear set or a lavalier microphone to iPad or tablet PC and capture superb vocals and amazing ambient sounds easily and accurately with exceptionally low handling noise. Wireless USB 2.0 Audio Interface - Enables users to wirelessly conduct podcasting, lectures recording, online web conferences and voice chats over the internet with support for most common calling applications including WebEx, GoToMeeting, Skype and more