Samson SR850, iSK HP-580, PreSonus HD7 - 4k video

Samson SR850 Specifications: Driver Diameter: 1.97" / 50 mm Magnet Type: Rare earth magnets Frequency Response: 10Hz - 30KHz Maximum Input Power: 200 mW Sensitivity: 98 dB Impedance: 32 Ohms Cable length: 8.25 ft (2.5 m) Weight: 9.5 oz (276 g) Included: (3.5 to 6.3 mm). 1/8" to 1/4" gold-plated adapter iSK HP-580 Specifications: Loudhailer Diameter: 50mm Semi-closed Back Impedance: 32Ω Sensitivity: 95dB±3 Frequency Response: 15Hz-25kHz Max. Power: 1200mW Weight with Cable: 10.15 oz. (288 g) Cable: 3m Attached - 3.5mm jack Adapter plug included: 3.5mm to 6.35mm screw-on stereo adapter PreSonus HD7 Specifications: Acoustic Design Dynamic, semi-open Driver 50 mm, neodymium Frequency Response 10 Hz to 30 kHz Sensitivity 98 dB SPL (1 mW) Maximum Power 300 mW Rated Impedance 32Ω Earpad Leather Weight, without Cable 7.8 oz (222g) Cable 8&2" (2.5m) straight, single-sided Plug Adapter 1/8" to 1/4" (3.5 to 6.3 mm), screw-on, gold-plated, stereo mini-plug