The rechargeable battery with noise cancelling on and Bluetooth off is rated at 40 hours. It uses the same USB charging plug as my Logitech keyboard, so I have a charging cable on my desk.
I connect to my K3S with the cable, which is inadequate. It's 4' long, lightweight, and flimsy. The jack on the headphones is a sub-mini, 2.5mm, and the other end is a mini-phone plug, 2.5mm. Amazon has several replacement cables that are heavier and designed for these headphones. 73, Jim N7US -----Original Message----- Wireless introduces latency, wired does not. Definitely use wired for CW. ED / W2RF -----Original Message----- From: [email protected] <[email protected]> On Behalf Of Jim Miller Sent: Wednesday, October 14, 2020 11:13 AM To: Jim McDonald <[email protected]> Cc: [email protected] Subject: Re: [Elecraft] K4 Headphones Q How about latency for CW either wired or wireless? How do you deal with battery life in contesting? Stay safe! Jim ab3cv On Wed, Oct 14, 2020 at 10:35 AM Jim McDonald <[email protected]> wrote: > Over the ear - very comfortable. > > Top rated (87) by Consumer Reports - tied with the new model. > > 73, Jim N7US > > -----Original Message----- > > Do the QC-35 rest on your ear or are they over the ear? > > Rich - N5ZC > > On 10/14/2020 7:59 AM, Jim McDonald wrote: > > I just bought a pair yesterday at a closeout price of $170 from my > > local > Costco. They have been discontinued. Costco online is now out of > stock, but some stores still have them. Amazon has them for $199 now. > > > > My favorite headphones up to now has been Sennheiser HD 280 PRO but > these sound great and eliminate the noise from my KPA1500 with the fan > on > #2 and a nearby water heater fan. No comparison with my old QC2 headphones. > > > > 73, Jim N7US > > > > -----Original Message----- > > > > > > I also use a QC-35. When plugged in with a cord, the power must be > > on > for the noise cancelling to work. That also turns on the DSP which > greatly improves audio quality. > > > > ED / W2RF > > > > > > > > > > -----Original Message----- > > > > Jim, > > > > I only use my Bose QC-35 when: > > > > 1. on the cell phone. > > 2. mowing the yard/tuning my motorcycle 3. whenever using the K3 & > > K3s. > > > > The noise cancelling works perfectly with the blower from the Alpha > > 77SX right next to me, I only hear what is coming in from the radio. > > Why your > > QC-35 does not noise cancel when attached via cord is not normal, > > mine > is a Godsend. > > > > 73, > > > > Gary > > KA1J > > > >> I have Bose QC-35 headphones. Noise canceling does not work on any > >> radio when you use the cord. Headphones work well with a Bluetooth > >> connection.What kind of device do I use, if and when my K4 is > >> delivered?Also on the K4 can a USB port expander be used on the K4 > >> with multiple devices and what is the K4 limited to?Jim K9TFSent > >> from my T-Mobile 4G LTE Device ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
