Sony MDR-RF840RK
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Sony MDR-RF840RK
Specifications:
General information:
Closed ear headphones surrounding
Auto Tuning
Volume control
Power supply headphone: 2 x AAA batteries (13-28 hours of listening)
Sound characteristically:
Diaphragm: PET
Drivers: 40 mm
Frequency Response: 20 - 20,000 Hz
Magnet: Neodymium
Transmitter:
Broadcast Type: RF
Range: 100 m
Battery charging method: automatic
Charging the battery
RF frequency range: 20-12 000 Hz 2 available channels
Audio input: Stereo mini jack
Weight: 115 g
Type headphones:
Color: Black
Dimensions: 108 x 128 x 108 mm
Weight of handset: 220 g
Included accessories:
Power Adapter
Rechargeable Battery
Necessary cables
| Code: | RO967a3 |
| Links: | Producer's Website: |
| Manufacturer information |
Sony Corporation is a Japanese company founded in 1946. Its headquarters is located in Tokyo. Its beginnings were humble. The first product sold under the Sony brand was a transistor radio. It was those radios that played a pivotal role in the company's expansion in the 1960s and the world quickly began to associate Sony products with a reliably stellar price-performance ratio. In the 1970s, Sony was severely affected by the global economic crisis. Many analysts considered the company effectively defunct and could see no future for it. However, they underestimated the famous Japanese perseverance and courage. The crisis was not a disaster for Sony; on the contrary, it served as a launching pad to even greater heights. The company recovered and soon changed the media landscape with the development of the CD and later the DVD. In the early 1990s, Sony achieved another major success with the introduction of the PlayStation gaming console. It is the gaming consoles that best represent the intersection of the three key areas in which the company operates today – electronics, video games, and the entertainment industry. 
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