Do the batteries need to be in in order to be able to listen to music?
1636635
I was disappointed to find out that the answer to this question is NO. If you remove the battery from the headphone, music plays normally in them. Which means these are non-amplified headphones and rely on the MP3 volume to produce sound. And thus, the volume level associated with these headphones is only as loud as the MP3 amplification minus the loss from the headphone speakers. The volume control on the headphones only controls the volume of the sound received by the headphone microphones - NOT the volume of the MP3.
1250380
Not at all. Leave the batteries in in case you need them. Plug it in when you can.
146552
Only batteries are needed. We used it from the front door to an indoor location. Perhaps it was our city environment but the volume was too soft for our use and we put them into electronic waste.
1980467
The speakers do need batteries (AA's), but the unit doesn't eat batteries if you remember to turn it off.
378206
No this device once being charge it can play music for long periods of time before it needs to plugin again, you only need to plug for it can start and then unplugged
2052938
Apparently it does, because I use the speaker every day and don't have to replace the (three AAA) batteries for weeks. Of course, I'm using it to listen to audio books--NOT music.
1137054
No, I keep mine plugged in whenever I'm not using it and it still plays for 7 hours or more on battery.
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.
840594
It doesn't have batteries, it's just a headband with little speakers. You attach it to your music device (iPod, etc.)
2284629
Neither! These are passive headphones (They do not have an internal amp). They simply reproduce the sound signal sent from the sound circuitry of the metal detector they are attached to. Nothing is amplified, so no batteries are needed.
824800
The device has an internal battery and can be charged and used without being plugged in. That said if your battery runs low you do have the option of plugging the unit in to play music.
490466
I don't put the batteries in it but it says you can. I put the whole hearing aid in it.
1431605
No. It's powered by the AA batteries. The only plug is for uploading songs.
166769
I've never run the battery down all the way. I've listened to music for about two hours at a time. Not sure beyond that.
264697
You can listen to music without using noise cancellation but the sound quality will drastically be reduced. Also the noise cancellation does stop one the batteries die.
1922385
No, you need the rechargeable batter installed for the headphones to work. I charge mine after every trip (after it went dead once on me). For this reason, I prefer the previous version (I have both) that uses a AAA battery .. that you can get at any airport.
1404257
No fm radio. I Load a music on a player . I carry a back up battery. Ride for 4 hours listen to music I like. Not people talking on the radio .