General Aviation headset - Sennheiser HME 110 in Redhill, Warwickshire for sale

Selling brand new Sennheiser HME 110 headset with instructions manual and official paperwork. (Retail price: £ 299 + delivery). Still wrapped up, never used. Provided by CAE Oxford Aviation Academy to all their students for flight training. 9 years left of a 10 year in warranty. Overview: Weighing only 12.3 ounces and featuring excellent passive attenuation and a wide frequency response, this new closed-back headset will make communications clear. The HME 110 is fitted with a volume control for the headphones; sensitivity control for the microphone; flexible, noise-compensated boom microphone for right- or left-side use; and a cushioned, foldable headband. The Sennheiser HME110 features super soft ear seals and a comfortable, padded headband making it easy to wear even on the longest flights. Features: Lightweight (only 12.3 ounces!) and comfortable Volume control MKE 45 flexible boom microphone for right- or left-side use Mono/stereo switch Single-sided round cable Super soft, comfortable, ear seals and headband. FAA/JTSO approval C57a and C58a Technical Data - Headphones: Transducer: dynamic, closed, circumaural Frequency response 45 - 15,000 Hz Nominal impedance 150 ohms mono, 300 ohms per system, stereo Passive attenuation > 10 - 40 dB Caliper pressure approx. 10 N Technical Data - Microphone with Preamplifier: Type: MKE 45-1 Transducer: electret, noise-compensated Frequency response 300 - 5,000 Hz Max. SPL 120 dB (distortion < 5 %) Output voltage 400 mV +- 3 dB at 114 dB/SPL (as per RTCA/DO-214) Min. terminating impedance 150 ohms Operating voltage typ. 16 V DC (8-16 V DC, 8-25 mA) as per RTCA/DO-214 General Data: Connection cable: single-sided round cable, length 1.5 m (5 feet) Weight without cable 350 g (12.3 oz.) Connectors headphones: 1/4" stereo jack, Microphone: PJ-068 Specials headphone volume control, mono/stereo switch Operating temperature -15 to +55 degree Celsius Storage temperature -55 to +55 degree Celsius