9 Wireless communication devices for the transmission of voice, data, audio and video content; sound reproducing apparatus; digital audio players; apparatus for voice recording; apparatus for voice recognition; apparatus for video recording; earphones; headphones; wireless headphones; wireless headsets equipped with headphones and microphones for use with smartphones; microphones; audio speakers; wearable devices in the nature of headphones and earphones with remote controls for controlling computers, mobile telephones, mobile electronic devices, and audio and video players and recorders; wearable activity trackers; interfaces for computers, computer peripherals, mobile telephones, wearable activity trackers, and audio and video players and recorders; electronic voice command and recognition apparatus in the nature of headphones and earphones with remote controls for controlling computers, mobile telephones, mobile electronic devices, wearable electronic devices, audio and video players and recorders, and speakers; wireless speakers; Bluetooth speakers; portable and integrated audiovisual equipment, namely, headphones, video camera and microphones, headsets and hands-free headsets; downloadable computer software and mobile software applications for streaming of music, sports, news, and entertainment; downloadable computer software and mobile software applications featuring voice- and gesture-controls for the operation of audio, video, and mobile devices; downloadable computer software and mobile software applications for recording, editing and sharing video and audio content; downloadable computer software for sensing, monitoring, tracking, measuring, recording, displaying, storing, and transmitting biometric data, heart rate, pulse rate, blood pressure, calories burned, temperature, physical activity level, body movement, distance, altitude, speed, steps taken, and biometric data; downloadable computer software and mobile software applications for facilitating e-commerce transactions