The headphones take AAA sized batteries and can use ... have a Philips CD player about 12 or so years ago that used the same method to differentiate between rechargeable and non-rechargeable ...

Our iHome iB88 review takes a look at a pair of splashproof, rugged, foldable, rechargeable Bluetooth headphones that are IP65 dustproof and water-resistant for active users.

The headphones take AAA sized batteries and can use either disposable or rechargeable varieties. ... abandon non-rechargeable batteries, put many warning labels and wait for lawsuits anyways ...