Sennheiser HP 02-140 Lightweight On-Ear Headphones with 3.5mm Stereo Right-Angle Connector (20-Pack) amazon-standard Illuminance (w/65°): 400 lux @

Illuminance (w/65°): 400 lux @ 5 m

Frequency Response:  70 - 18k Hz

The Heritage Audio HA73EQ is now twice as awesome with it's brand spankin' new dual channel format

Widely regarded as “the reference standard” Dominant strings

New low-profile Gretsch tom bracket

Sennheiser HP 02-140 Lightweight On-Ear Headphones with 3.5mm Stereo Right-Angle Connector (20-Pack) amazon-standard Illuminance (w/65°): 400 lux @The HP 02 140 Lightweight On Ear Headphones from Sennheiser come in a pack of 20. Each headphone features an adjustable lightweight headband and offers high quality audio with a frequency response range of 20Hz to 20kHz and 32 impedance. Each headphone also features rotatable ear cups for efficient storage with changeable ear pads for comfort and hygiene. Comfortable on ear design Adjustable, lightweight headband for listening comfort High quality