Headphones do not use batteries, they use a power source such as an iPod or mobile phone.
All wireless headphones do need batteries.
No, Beats by Dr. Dre Solo headphones do not require batteries.
No, Beats Solo and Beats Mixr don't.
Beats Solo, Beats Solo HD, Beats Tour, iBeats, urBeats, HeartBeats, PowerBeats, Beats Mixr, and Beats Pro
Only Beats Executives, Wireless and Beats Studio require batteries. To charge Beats Wireless, you require the USB charging cable that came with them, plug one end into your headphones and the other end into a USB port. Beats Studio require two AAA batteries. To install/remove the batteries, grip left ear cup using two hands, press down and twist counter-clockwise approximately 1/8th turn. All other Beats don't require batteries. Only Beats Wireless and Beats Studio require batteries. To charge Beats Wireless, you require the USB charging cable that came with them, plug one end into your headphones and the other end into a USB port. Beats Studio require two AAA batteries. To install/remove the batteries, grip left ear cup using two hands, press down and twist counter-clockwise approximately 1/8th turn. All other Beats don't require batteries.
Install new batteries if you suspect they are low. You will then know for sure.
All wireless headphones do need batteries.
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Only Beats by Dr. Dre Wireless and Beats by Dr. Dre Studios require batteries. To charge Beats by Dr. Dre Wireless, you require the USB charging cable that came with them, plug one end into your headphones and the other end into a USB port. Beats by Dr. Dre Studios require two AAA batteries. To install/remove the batteries, grip left ear cup using two hands, press down and twist counter-clockwise approximately 1/8th turn. All other Beats by Dr. Dre don't require batteries.
Energizer batteries.