The AKG K840KL wireless headphones are very lightweight. It’s one of the important things to remember if you’re aiming for comfort in using wireless headphones. These wireless headphones only weigh 145 grams, which makes it very light. The fit is also tight on this one, they fit right in the ears, and they don’t fall off quickly.
The bass on the AKG K840KL wireless headphones is a little de-emphasized. Playing classical music on this headphone sounds great and relaxing. Its clarity is good. You can still hear even the slightest sound on them.
The battery life of the AKG K840KL wireless headphone is four and a half hours on full charge. Its charging time is said to be a little over an hour.
The wireless technology gives a 2.4 GHz stereo transmission with a frequency range of 10.5Hz to 31kHz(120dB). The transmitter is also able to pair with up to four devices at a time. Its Bluetooth range reaches up to 65 feet. They included a USB rechargeable headphone battery which makes it compatible even with your smartphone’s USB charger. The headphone’s cord is 47 inches in length. You can use this cord for wired listening.
Inside the box, you can find the owner’s manual (which is available in 16 languages), the warranty information, and the attention booklet. They also added the 47 inches bypass cable, and the longer 57 inches charging cable. You can also find inside the K840TX wireless transmitter, the 5V AC adapter, the airline adapter, and the three different 3.5mm adapter (1/4”, 2.5mm and 3.5mm). There’s the storage case, two rubber bands, the adhesive fastener, and of course, the wireless headphone.
Compared to others, the AKG K840KL wireless headphones are lightweight, makes it easy to carry around. It’s user-friendly which makes it good for the kids. Most of all, it snuggly fits on my ears, making me less worried about dropping it off my head.
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