Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: How is the battery recharged? Does it have to be removed and put into a charger?
Document: Their sound quality is excellent. Their comfort quality is very good. Headband adjustment seems a slight cheesy, but may hold up over the long hall. The charger stand is tooooo tall, but works. What don't work, or at least is not liked much, is that Sony has decided to hook us and put a Sony rechargeable battery set that can't be maintenanced by anyone but Sony in these new headphones. The old set used regular rechargeable or regular batteries.
With these Sony headphones it took me 5 minutes from un-box to sitting down on my couch and watching tv and listening through this headphones.The range I cant really speak for considering the furthest I've gone with these headphones on was about 15 feet and they still functioned at peak performance. The battery life I believe is excellent, I will usually put them on the charger every 2 days, so that should give you an idea of how long the battery lasts.Overall great headphones, great price. Definitely Recommend.
Easy to set up. Very comfortable. Great range with no static and they hold a charge for a long time in case you forget to put them back on the charger. I sleep with them all night as I can't sleep without the TV :( but now my husband who likes silence to sleep doesn't have to hear the TV at all. Great compromise for us. Isn't that what a good marriage is? Works great for us for over 30 years :)
Get the most expensive? The least expensive? So I read the ratings - read between the ratings. Most expensive, just that. Expensive! Least expensive? Just that - inexpensive. In-between? Sony (and others) - I chose Sony based on positive reviews; the brand is Sony; and the vendor, Amazon. How could I lose?Received them quickly per Amazon's excellent Prime program; installed them easily and quickly - biggest challenge? Where to put the Transmitter/Charger.
The fact that the eneloops would not charge from the included inductive charger without being inserted into the original battery case (would have been difficult) did not bother me at all since I have a smart charger for my eneloops anyway.
The sound quality is good and they are comfortable. Battery life is good (I go several days without charging assuming 2-3 hours of use per day). The base charging feature is nice because I never have to go hunting for an external/separate charger.
I'm very thankful for the individual volume controls because they've saved us many an argument. The advertised 3.5 hour battery life is the only thing that spooks me. I'd like something that would go eight hour or longer, then sit on the charger all night. So, I only use these headphones when I'm &#34;up and about&#34; or at the entertainment center.
Simply put - I have loud neighbors so needed headphones for both my living room tv and my bedroom. Works perfect with both a Toshiba (old school box) and a Samsung Smart TV. When the battery is low is the only time I noticed a tiny little bit of static, nothing that wouldn't allow me to hear clearly though. The only downside is that it didn't come with an option to buy 2 headphones.
they're a breeze to use! just put in battery,on headphones , plug rca inputs into base, and plug the ac adaptor and voila ! they're good up to 150 feet away ! ,just a little static when you're at a distance and move, or you can lower the volume on the stereo and lift it on the headphones. they turn off when you pull out the headset. then just make sure the red indicator light is turned to red when , you put them back and recharge them !
These headphones are much more than capable for all of those. The whole system consists of four very simple components: power supply cable, audio cable, base/charging cradle, and the headphones. Connecting the base to your computer is a very simple process. The whole process of connecting the base to the computer's audio jack and to the power outlet took less than a minute. After that, simply put the headphones on top of the base for the initial battery charge.
Answer: All you do is place the headset on the charging station, which is also the receiver.  The battery is internal and charges just by sitting on the docking station.