according to the " technical details" section, these earphones require 2 lithium batteries. is this a mistake?
473652
Has to be a mistake. They are just regular earphones but the design makes them great for the gym. Whatever you do, they stay put.
1522186
Batteries are included but use rechargable AAA. One minor drawback is the headphones may need a bit of jiggling to make proper contact on the recharging station. Surprisingly good range from station. Had to replace mine as the swivel area between headband and ear piece broke. Hope this helps.
457726
Nope. The battery is for the noise canceling feature. But can't run them without the noise canceling feature on.
1144967
Thanks for the reply Old Sub Man. I do have this now and now I am aware that this has removable batteries for the headphones. I was not sure before getting this if the batteries were removable or not. I did not know about your tip for the NiMH v. LiIon batteries so thank you for this!
1144966
Yes, you can replace the rechargeable batteries with regular alkaline or even heavy duty batteries. Just don't try setting the headphones on the cradle with regular batteries, it could damage them. Only use rechargeable batteries if you are setting the headset on the charger.
1449314
No they do not. They are not noise canceling or wireless therefore they do not require batteries.
1793988
These are Lipo batteries - mp3 players use lithium ion batteries - won't work.
611578
None. They work perfectly. The only delay is when you first turn them on. They take a couple of seconds to synch with the base. Typically, I turn off the headphones whenever I'm done using them to save batteries.
541347
Noah, The earphones do not require a power supply. The microphone is an "electret" type and an electret mic cartridge typically includes an FET transistor within the mic module. That FET does require power (typically 3 to 10 volts or so) and the power usually is provided by the device you plug it in to (sound card, Etc.). Some radio transmitters provide that required power applied to the mic connector as needed. You do not normally need to provide any batteries for the mic in MOST applications.
840595
There are no batteries in this headphone, only earplugs and a jack that plugs into the device that you're using.
571809
The Audio-Technica ATH-M50x doesn't use batteries. I can't comment on battery drain, because I use a portable headphone amp plugged into my Windows 8 phone.
818795
No, but I have a weird problem. My new battery life is about four minutes and then the red light comes on. The batteries work in other equipment, but not in the headphones.
1451056
I bought mine many months ago and they still work. I have learned to be gentle with earphones, because I really got tired of having to continually buy new ones. Just don't be rough and they should last a while.
1587643
Batteries not needed but these are not wireless headphones. You still have an audio jack.
723272
They are low ampHr and not lithium. I bought Eneloop precharged AAA's to use in them instead and they last far longer.
449915
I haven't had my Sennheiser set long enough. I just received it last week. I purchased a spare battery and charged both of them as directed before using it. It's still working with the first battery. I have not had to use the back up battery.
896495
Honestly, it's too soon for me to tell because I don't use earphones often and haven't had these very long. Also, I tend to be very careful with any of my equipment--unlike the person who responded earlier! But I bought these because they came recommended by someone who is an expert in tech and audio equipment. So, here's hoping!