Can this be plugged directly into an iphone for conducting teleconferencing?

This headset does have Bluetooth connectivity for cell phones, but according to the manual "the microphone will not transmit unlessplugged into an intercom." I played around with my Galaxy S3, and that held true. I think you need a plane to go with it if you want to use it for teleconferencing, which would be both expensive and hard to fit in your laptop bag.

Can music be played through the Bluetooth while not plugged into the aircraft?

In the ones I have, Bluetooth can only be used for phone calls, not for streaming music. For music you use the regular 3.5mm jack. I have never used them outside the aircraft so I can comment on the wired music experience

Does this product come with a warranty?

The Lightspeed does come with factory warranty. In order to utilize the warranty, your headset must be registered with Lightspeed. By the way, the Sierra is by far the most comfortable headset I ever wore.

has anyone tried them for Kids around 5? do they seal good to provide the same level ANR

I think they should be OK. I've flown with the grandkids (now 7 and 9, but also earlier) and they seem to be happy with these, the older version, or the old standard David Clarks. Key is that the headband has to be adjusted to its shortest setting for a smaller head. Good luck.

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Lightspeed Aviation Sierra ANR Aviation Headset - Premium ANR Pilot Headset - Maximum Noise Canceling & Bluetooth Technology for Exceptional Communication

Lightspeed Aviation Sierra ANR Aviation Headset - Premium ANR Pilot Headset - Maximum Noise Canceling & Bluetooth Technology for Exceptional Communication

Product ID: 1143175

🎧16 oz ultra-lightweight fit

🔇Advanced Active Noise Reduction (ANR)

🔵Seamless Bluetooth + Aux connectivity

₩2039832

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Description

✈️ Elevate your cockpit game with the Sierra: where silence meets smart tech

FLY IN FIVE STAR COMFORT - Lightweight 16 oz design with breathable ear seals for all-day wear without fatigue
BLUETOOTH READY FLIGHT DECK - Effortless device pairing with integrated control box and auxiliary input for multitasking pilots
BUILT TO ENDURE EVERY FLIGHT - Rugged American-made durability engineered for the harshest aviation environments
PILOT CRAFTED PREMIUM FEATURES - Exclusive FlightLink app integration and smart volume control for smooth audio transitions
CRYSTAL CLEAR FIVE BY FIVE COMMS - State-of-the-art ANR tech ensures cockpit silence and flawless ATC communication clarity

The Lightspeed Aviation Sierra ANR Headset delivers premium active noise cancellation, ultra-lightweight comfort at just 16 oz, and seamless Bluetooth connectivity. Designed by pilots for pilots, it features reversible mic and headband, an integrated control box with aux input, and exclusive app support for enhanced communication and audio control. Built tough in the USA, it’s the ultimate headset for professional aviators demanding clarity, comfort, and cutting-edge tech on every flight.

Specifications

ASIN	B003VSARXI
Batteries	2 AA batteries required.
Color	Black, Silver
Connectivity technologies	Bluetooth, Wireless
Customer Reviews	4.6 4.6 out of 5 stars (503)
Date First Available	June 18, 2010
Form Factor	On Ear
Item Weight	1 pounds
Item model number	Sierra
Manufacturer	Lightspeed Aviation
Other display features	Wireless
Product Dimensions	15 x 13 x 9 inches
Special features	5-Year Warranty, Adjustable Headband, Integrated Remote Control, Lightweight, Noise Cancellation
Whats in the box	Protective Case
Wireless communication technologies	Bluetooth

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