| Headset | Ability | Power | MIC Type | Dual Volume |
Stereo | Active Impedance | Downlead | Warranty | Unit Weight | Price |
 Lightspeed ZULU Headset |
Act: 31-40dB Pas: 12-22dB Bluetooth Music Input |
2 x AA 40 hr |
Electret | Yes | Yes | St: 120 ohms Mo: 60 ohms |
GA Twin US NATO LEMO |
5 yr | 390g | £569.00 + VAT (£668.58) |
 Bose A20 Aviation Headset |
Bluetooth Music Input |
2xAA 45hr |
Electret Dynamic |
Yes | Yes | St: 320 ohm Mo: 160 ohm |
GA Twin US NATO LEMO |
5 yr | 340g | £782.98 + VAT (£920.00) |
 Bose Aviation X Headset |
Max: 115dB ambient |
2 x AA 40hr |
Electret | Yes | Yes | St: 320 ohms Mo: 160 ohms |
GA Twin US NATO LEMO |
5 yr | 340g | £578.72 + VAT (£680.00) |
 Sennheiser HMEC 250 ANR |
Act: 16 - 25 dB Pas: 13 - 34 dB |
2 x AAA | Electret | Yes | Yes | St: 1200 ohm Mo: 600 ohm |
GA Twin | 3 yr | 280g | £299.00 + VAT (£351.33) |
 AirMkX ANR Aviation Headset |
Act: 10-12dB Pas: 24-26dB Music Input |
2 x AA | Electret | Yes | Yes | St: 300 ohms Mo: 150 ohms |
GA Twin | 2 yr | 395g | £169.00 + VAT (£198.58) |