PRO 300 High-Fidelity On-ear Headphones Discontinued

PRO 400 PRO 300
Design Over-ear, closed back On-ear, closed back
Driver Type Dynamic, neodymium magnet Dynamic, neodymium magnet
Driver Unit Φ2” (50 mm) Φ1-5/8” (40 mm)
Impedance 23 ohms @ 1kHz 53 ohms @ 1kHz
Maximum Power 1,000 mW 300 mW
Sound Pressure Level 106 dB ±3 dB (1 kHz, 1 mW) 107 dB ±3 dB (1 kHz, 1 mW)
Frequency Response 20 Hz – 20 kHz 20 Hz – 20 kHz
Weight (without Cable) 10.2 oz (289 g) -
Ports 1/8” (3.5 mm) on left earcup -
Cable Length CABLE A: 4 ft (1.2 m) detachable, tangle-resistant flat cable with remote/mic optimized for Apple devices; CABLE B: 10 ft (3 m) detachable, tangle-resistant flat cable 4 ft (1.2 m) attached, tangle-resistant flat cable with remote/mic optimized for Apple devices
Connectors CABLE A: 1/8” (3.5 mm) male-to-male mini stereo with L-type on one side; CABLE B: 1/8” (3.5 mm) male-to-male mini stereo Gold-plated 1/8” (3.5 mm) L-type mini stereo
Included Semi-rigid carrying case; detachable, tangle-resistant flat cable (4 ft/1.2 m) with in-line remote/mic optimized for Apple devices; 10 ft (3 m) detachable, tangle-resistant flat cable; gold-plated 1/4” adapter; cleaning cloth Soft carrying case; gold-plated 1/4” adapter; cleaning cloth
Weight (with Cable) - 7 oz (200 g) with attached cable