The HA-31 Guardian headphones from Hamilton let a parent or teacher monitor a listener's volume levels. Red and Green LED indicator lights on the side of the earcup tell you if your child or student is listening at a safe level. The headphones can run for approximately 125 hours on a charge, and a charger is included.
The headphones feature a padded, adjustable headband for a secure and comfortable fit. The foam-filled leatherette ear cushions provide comfort and noise isolation, and can be easily cleaned. The single-sided coiled cable provides the perfect amount of slack and minimizes tangles. The standard 3.5mm mini plug and included 1/4" adapter allow you to connect to a wide variety of audio devices.
