Klipxtreme KNH-250 Placid Active Noise-cancelling Headphones

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Placid Active Noise-cancelling Headphones

The KNH-250 wireless headphones are engineered with world-class Active noise cancellation technology, so you can indulge yourself in great sound while effectively reducing ambient noise the moment you switch the ANC on. Enjoy immaculate sound from headphones built with high-end materials, which are lightweight and durable for the most comfortable fit. These over-the-ear headphones are designed for both, wired and wireless modes without compromising quality. They also feature a rechargeable lithium-ion battery that will take only 3 hours to be fully charged and will provide up to 13 hours of playback time with the Active Noise Cancellation feature on. By adopting the advanced A2DP, AVRCP, HFP and HSP profiles, they stream music wirelessly from any compatible device within a range of 33ft from the audio source. Its convenient built-in microphone allows taking clear calls even in loud environments. Take complete control of your calls and be immersed in your music all day regardless your noisy surroundings.

  • 30mW of very rich and high-fidelity sound delivered through 40mm large-aperture drivers
  • Advanced Active Noise Cancellation Technology ANC blocks out unwanted ambient noise so you can focus on what you want to hear
  • Equipped with a lithium-ion battery, they provide extended playback times of up to 18 hours on a single charge and 13 hours with the Active Noise Cancellation feature on
  • Foldable ear pads for easy portability
  • It comes with an ergonomic and adjustable headband, as well as extra soft cushion ear pads for comfortable all-day wearing
  • It lets you enjoy your favorite music by plugging the 3.5mm auxiliary cable and activating the ANC for an even more immersive experience
  • Convenient full on-board controls for the ANC feature, and a multifunction button for power, music and phone call management
  • Built-in microphone allows you to easily switch between playing music and answering calls in hands-free mode
  • Stylish and lightweight design complemented by a solid frame made of high-end materials

Placid Active Noise-cancelling Headphones


  • ANC reduction: Up to 22dB
  • Color: Gun metal
  • Driver unit: Ø40mm
  • Frequency: 20Hz-20.000Hz
  • Type: Over-the-ear
  • Impedance: 32?+15%
  • Maximum power output (P.M.P.O.): 30mW
  • Sensitivity: 105dB ± 3dB/mW (S.P.L. at 1kHz)
  • Type: Active noise-cancelling headphones with Bluetooth® wireless technology


  • Directivity: Omnidirectional
  • Frequency: 20Hz-10KHz
  • Type: Integrated
  • Impedance: 32?
  • Sensitivity: 105dB ± 3dB/mW (S.P.L. at 1kHz)
  • Volume control: Yes


  • Buttons: Multifunction button (On/Off, Play/Pause/Hands-free functionality) Volume+/Next song, Volume-/Previous song
  • Connection type: Bluetooth® V4.0 and 3.5mm aux. port
  • Supported profiles: A2DP, AVRCP, HFP, HSP
  • Wireless range: 33ft
  • Wireless RF frequency: 2.4GHz


  • Capacity: 3.7V DC/300mAh
  • Charging method: Micro-USB charging port
  • Charging time (both earbuds and case): 3 hours
  • Run time: 18 hours at 50% volume (BT on, ANC off) 12 hours at 100% volume (BT on, ANC off) 13 hours at 50% volume (BT/ANC both on) 6 hours at 100% volume (BT/ANC both on)
  • Standby time: 200 hours
  • Type: Polymer lithium-ion battery

Additional features:

  • Cable length: Micro-USB: 1.3ft Aux cable: 4ft
  • Cushion pads: High grade cushion
  • Dimensions: 7x7.2x3.4in
  • Foldable: Yes
  • Sweat resistant: Yes
  • Weight: 8oz/0.5 lb
  • Warranty: One year-limited
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