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.

Lightspeed Sierra Anr Aviation Headset

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

✈️ Elevate your flight experience with the Sierra ANR — where silence meets style.

COMFORT THAT LASTS - Lightweight 16 oz design with breathable ear cushions ensures fatigue-free flights, even on long hauls.
PRO GRADE DURABILITY - Built tough for the skies with rugged construction that withstands daily use and keeps performing like new.
SEAMLESS CONNECTIVITY - Effortlessly switch between Bluetooth and aux inputs to stay connected to your devices without missing a beat.
VALUE PACKED INNOVATION - Premium Lightspeed technology and FlightLink compatibility all bundled under $700 — the smart pilot’s choice.
COCKPIT QUIETUDE MASTERED - Experience crystal-clear ATC communication with industry-leading active noise cancellation that drowns out cockpit distractions.

The Lightspeed Sierra ANR Aviation Headset delivers superior active noise cancellation, Bluetooth and aux connectivity, and exceptional comfort in a lightweight, durable design. Trusted by pilots for clear communication and long-lasting performance, it combines premium features and value under $700, making it a top-tier choice for professional aviators.

Specifications

ASIN	B003VSARXI
Batteries	2 AA batteries required.
Colour	black
Customer Reviews	4.6 4.6 out of 5 stars (466)
Date First Available	16 August 2012
Item Dimensions LxWxH	38.1 x 33 x 22.9 Centimeters
Item Weight	453 g
Item model number	Sierra
Manufacturer	Lightspeed
Other display features	Wireless
Product Dimensions	38.1 x 33.02 x 22.86 cm; 453.59 g
Special features	noise cancelling

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