Package Includes:

• (1) AKG K240 MKII Pro Studio Headphones Audiophile Sound Quality K 240 MK II
• (1) Rockville HeadRock Battery Powered Rechargeable Personal Headphone Amplifier Amp

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Whats In The Box:

• (1) K240 MKII Headphones
  
• (1) EK300 Cable
  
• (1) EK500 Coiled Cable
  
• (2) Velvet Ear Pads
  
• (2) Leatherette Ear Pads

Description of K240 MKII:

The AKG K240 MKII professional over-ear, semi-open headphones carry on the success of their predecessor—the AKG K240 Studio—and are a standard in studios, orchestras and on stages around the world. Their advanced 30 mm XXL transducers with patented Varimotion diaphragms deliver a wide dynamic range, increased sensitivity and high sound levels, while their semi-open design provides the airiness of open headphones with the powerful bass response of closed designs. With impressive accuracy, musicians, producers and engineers rely on the AKG K240 MKII to clearly hear mixing details, which has made these headphones a standard in recording settings.

In addition to great sound quality, the headphones are extremely durable and comfortable. Not only built to withstand the demands of countless hours in the studio, their self-adjusting headband provides an ideal fit and their over-ear pads nicely envelop the ears. The AKG K240 MKII headphones also feature a professional mini XLR connector and come with a 3m (10ft) straight cable, 5m (16ft) coiled cable and convertible jack plug for connecting portable equipment easily. Altogether, from performance and ease of use to comfort and reliability, the AKG K240 MKII is a powerful tool for production environments.

Features:

• Headphone type: Semi-open
  
• Max. input power: 200 mW
  
• Audio frequency bandwidth: 15 – 25000 Hz
  
• Sensitivity: 104 dB SPL/V
  
• Rated impedance: 55 Ohms
  
• Detachable cable: Yes
  
• Cable length: 3 m
  
• Plug type: Stereo 3.5 mm (1/8”) with 6.3 mm (1/4”) screw-on adapter
  
• Connection type: Mini XLR
  
• Connection gender: Male
  
• Connection contacts: 3-pin
  
• Connection interface finish: Gold
  
• Replaceable earpads: Yes
  
• Wearing style: Over-ear
  
• Cup style: Semi-open
  
• Foldable: No
  
• Dimensions (L x W x H): 110 x 190 x 200 mm (4.33 x 7.48 x 7.87 in)
  
• Net weight: 240 g (8.47 oz)

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Video of HeadRock:

How to Set Up Your HEADROCK:

Includes:

• (1) x headphone amp
• (1) x Micro USB cable
• (1) 3.5mm male to male audio jack cable
• Manual and warranty card

Features:

• Rockville HeadRock Battery Powered Rechargeable Personal Headphone Amplifier
• 3.5MM headphone output
• 3.5MM aux input for music player
• Lithium Battery with 800mAh capacity
• Rechargable battery lasts 5-8 hours per charge
• Headphone Amplifier Works with 16 – 300 Ohm Impedance
• Headphone output power: 65mW@16O 89mW@32O 95mW@64O 69mW@120O 29mW@300O
• High/Low gain switch
• Volume control
• 300mv - 2000mv
• Strong aluminum case ensures long life and strong heat dissipation
• Chipset: NE5532
• THD: 0.0001%
• Signal to Noise Ratio: 125dB
• Frequency Response: ±odB (20Hz-20kHz)
• AMP Internal Voltage: 8V / 500mA
• DC power Charging: 5V 1A
• Weight: 0.17 lbs
• Dimension (inches): 3.74” x 2.09” x 0.5” ( L X W X H)

Owner's Manual?