Koss BT540i Headphone Review

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The Koss BT540i has an integrated AptX codec which enhances the acoustic clarity. It also has an On-Board Control that allows you to change tracks, adjust the volume and take calls. The soft memory foam that they’ve installed on the ear pads gives perfect seal and comfort. The lows are smooth, mids are robust, and highs are crisp.

Design and Build

These wireless headphones only weigh .45 pounds and measure 7 inches by 2 inches by 7.5 inches. The company gives you a one-year warranty for the product.

Koss BT540i Full Size Bluetooth Headphones, Black with Silver Trim
  • Wireless Bluetooth Sound with AptX integrated electronics for enhanced acoustical clarity
  • On-Board Control to change volume, tracks, and answer calls
  • Soft Memory Foam Cushions create the perfect seal and long lasting comfort
  • On Board Microphone
  • Koss PLX40 Dynamic Element precisely tuned to feature crisp highs, robust mids and smooth lows for the ultimate personal listening experience
They made the earcups of the Koss BT540i of black matte plastic and polished the finer details with metal. It’s also flexible allowing you to adjust the fit on your ears.

All of the functionality of these wireless headphones can be found on the right side. The five buttons which include the on and off button are all located on this side. They’re small and are barely noticeable but are easy to feel with your fingers. You can find the hinges right above the earcups. They’ve covered the top of the headband with leather and the bottom with a cloth material.

It’s comfortable and light to wear. One could definitely say that comfort and ergonomics is high on this headphone. It’s firm but not tight on your head. They’ve cushioned the ear cups well, and the headband’s soft padding make it more comfortable. The Koss BT540i is also foldable which makes it portable.

Sound Quality

The sound quality of the Koss BT540i has a stunning clarity on its highs, mids, and lows. Its bass is there and is slightly emphasized.

Cranking up the treble produces a harsh sound. But adjusting it to an audible level creates a sound quality that anyone can appreciate.


They’ve built the Koss BT540i with a lithium-ion battery that gives you 12 hours of play time on a single charge. They included an audio cable in the pack that lets you connect and use the wireless headphones in case you run out of batteries. A USB cable is included if you’re on-the-go and needs to recharge.

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It has a very balanced sound that lets me enjoy my listening experience. Its low profile design makes it professional looking. The price is reasonable for this wireless headphone.

Product Comparison


  • Koss BT540i Headphone

  • DimensionDimension
  • WeightWeight
  • BatteryBattery
  • Battery LifeBattery Life
  • CableCable
  • Charging TimeCharging Time
  • ManufacturerManufacturer
  • OriginOrigin
  • PricePrice

  • Dimension7.5 x 7 x 2 Inches
  • Weight0.45 lbs
  • BatteryRechargeable Lithium-ion Battery
  • Battery LifeIn use: 8 hours
  • Cable1.4m
  • Charging TimeAround 3 hours
  • ManufacturerKoss
  • OriginUSA
  • Price$$$

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Koss BT540i Headphone













  • Low-profile design is perfect for people who love the simple yet stunning design.
  • It’s excellent in construction, minimalistic in approach yet an awesome layout.
  • It has a great sound quality with an AptX codec.
  • The price is reasonable for the features it offers.

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