Turn your existing fitness class or outdoor event sound system into a Silent Event with a silent system expansion Kit, featuring Sound Off™ GLO2 EXP Headphones. The premier solution for Yoga, Cycle, or any type of instructor-lead fitness events. This provides an alternative to classes using loudspeakers.  This portable version of our Sound Off kits has everything you need for holding a "silent" class without needing power from a wall outlet. The Bolt transmitter that is included with this kit is battery-powered and is typically worn on the instructor's waist with the included Bolt Belt. The E-mic headset microphone connects directly into the Bolt transmitter. Music can be played as well using the Bluetooth connection from a smart device to the Bolt transmitter. This means you can have your music and microphone both playing through the headphones to your participants.  Includes: Sound Off™ GLO2 EXP Headphones Storage Tote for Headphones GLO2 Replacement Cushions GLO2 Squid Chargers - 16-port headphone charger for larger kits Bolt hip belt pouch GLO2 Headphone single USB charging cables for smaller kits Mobile Transmitter for GLO 2 Headphones and BYO Receivers w. Bluetooth and Rechargeable Battery. Sound Off Bolt2.2 Transmitter E mic (Black) - sweat rated at up to 20 classes per week. Connection cable AV Now Black Oval Windscreen 5 Pack Do you need assistance in finding the right Sound Off system and/or products for your fitness center or business? Fill out the Sound Off Questionnaire and we will contact you regarding products and new solutions for silent sound systems. These systems can be custom built to fit your unique budget and needs. Please contact [email protected] to build your custom kit today. Product highlights: UHF/RF Technology Up to 3 900 MHZ channels available Double Phase Lock Loop for enhanced connection and frequency stability Upgraded PCB design with enhanced shielding LED channel indicator *Color swatches shown are not exact representations of LED colors. Brightness & hue will vary. “Silent Light Mode” for non-LED experience Lightweight 40mm Mylar audio drivers Frequency Response: 20Hz~18KHz Signal to Noise Ratio: 90dB @ 1KHz Comfortable over-ear leatherette ear cushion for increased sound isolation Silicone headband Low profile fold-flat headphone design Up to 12 hours of battery time on Headphones Power-saving features to increase battery life Rechargeable Lithium-polymer battery (600mAh) Sound Off Secure NFC Technology built-in 1-year warranty against manufacturer’s defects