Do the speakers work without a power source? Are they portable?
860171
They need to have an AC plug in to work, but that is your only limitation. Very portable as long has you have an outlet
860172
They require 120VAC power, i.e., need to be plugged in. They are portable, but need a power source.
860173
No... Speakers must have a powersource. They are portable, if you have an AC power source. Great pair of speakers
1206794
No. The speaker gets its power from the USB port on your computer or player. (It also gets the sound from that port.)
2135272
Ye you need an amp, they are not powered speakers. They are passive speakers as indicated by the "P" in "B2030P" which means you need an amp to power them.
1358782
Yes they do- The usb cord coming from the speakers acts as a power source- unless you use a bb or iphone charger for the wall
843386
They are not powered speakers if that's what your asking. Pair them with a Lepai 2020 amp ($20) and you could hook it up.
1142324
These speakers are not self powered. You will need an amp of some kind to power them. They are good speakers for the price. I like mine.
1912936
Yes they need a lot of power to work .. I run the pair off a 100 watt receiver and they sound ok .. You get what you pay for
2005660
Sorry, but no. The speakers get their power from a powered USB port on the connected device. There's two cables that come from the speakers - one is a USB connector that plugs into the PC or Mac for power and the other is an audio connector that plugs into the headphone jack of the PC or Mac. I bought these speakers to connect to a used Mac that had no audio to the speakers (but still had headphone audio) and they work great. Unlike the iPad Mini, the Mac has a powered USB port.I suppose you could try connecting the USB connector of the speakers to a USB charging plug, but I don't know if that will work and that seems inconvenient for a mobile device like the iPad Mini. Sorry, but no. The speakers get their power from a powered USB port on the connected device. There's two cables that come from the speakers - one is a USB connector that plugs into the PC or Mac for power and the other is an audio connector that plugs into the headphone jack of the PC or Mac. I bought these speakers to connect to a used Mac that had no audio to the speakers (but still had headphone audio) and they work great. Unlike the iPad Mini, the Mac has a powered USB port.I suppose you could try connecting the USB connector of the speakers to a USB charging plug, but I... » Read More Sorry, but no. The speakers get their power from a powered USB port on the connected device. There's two cables that come from the speakers - one is a USB connector that plugs into the PC or Mac for power and the other is an audio connector that plugs into the headphone jack of the PC or Mac. I bought these speakers to connect to a used Mac that had no audio to the speakers (but still had headphone audio) and they work great. Unlike the iPad Mini, the Mac has a powered USB port.I suppose you could try connecting the USB connector of the speakers to a USB charging plug, but I don't know if that will work and that seems inconvenient for a mobile device like the iPad Mini. « Show Less
366519
The speakers are powered by 110v house current, or it also has provision for batteries (that I have never used). They work well on house current.
1615066
they do not require electrical power. The back just has the two speakers terminals on it. No jacks for an non-amplified signal.
1388211
These are not powered speakers. You need an amplifier. So these are definitely not meant to be hooked up to a computer.
804798
No they must have an outlet to plug into. Sound is great for a computer or smaller area, not meant for a bigger space.
421631
These are battery-powered speakers charged by a 5-V power supply. They will not blast you out of the park, but are great on the patio for background music connected to my phone via Bluetooth. If there is a wattage, it would be low, since they will work for about 8 hours on a charge.
1592763
Yes! You need your power cord. Plug the speakers into the headphone jack and your USB plug onto the cord that comes with the speakers. Very cool speaker set..sound ok - what's cool are the lights & fountain to the beat.
575890
Yes, but I don't use it. Obviously, the built in speakers don't require any external ones, so I put my ol' ones away.
2132054
I use mine connected to a desktop computer sound card. These are powered speakers any they will work on anything that has a line output If I remember correctly the speakers were about 20 watts which may cover a small back yard.
447764
Yes they do. They need the power source. I bought these for my son. He loves them.