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Sony MDR-RF840RK Black Circumaural headphone

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Brand:
The general trademark of a manufacturer by which the consumer knows its products. A manufacturer can have multiple brand names. Some manufacturers license their brand names to other producers.
Sony
Product name:
Product name is a brand's identification of a product, often a model name, but not totally unique as it can include some product variants. Product name is a key part of the Icecat product title on a product data-sheet.
MDR-RF840RK
Product code :
The brand's unique identifier for a product. Multiple product codes can be mapped to one mother product data-sheet if the specifications are identical. We map away wrong codes or sometimes logistic variants.
MDRRF840RK
Category
Headphones come in all sorts of designs and qualities, so you will surely be able to find your perfect pair in our database!
headphones
Data-sheet quality: created/standardized by Icecat
The quality of the product data-sheet can be on several levels:
only logistic data imported: we have only basic data imported from a supplier, a data-sheet is not yet created by an editor.
created by Sony: a data-sheet is imported from an official source from a manufacturer. But the data-sheet is not yet standardized by an Icecat editor.
created/standardized by Icecat: the data-sheet is created or standardized by an Icecat editor.
Included since: 07 Mar 2007
The date Icecat noticed for the first time that this product was included in the price list of a channel partner
Product views: 56694
This statistic is based on the 74536 using ecommerce sites (eshops, distributors, comparison sites, ecommerce ASPs, purchase systems, etc) downloading this Icecat data-sheet since 07-03-07 Only sponsoring brands are included in the free Open Icecat content distribution as used by 72815 free Open Icecat users .
Info modified on: 20 Oct 2017 06:38:35
The date of the most recent change of this product data-sheet in Icecat.
Long product name Sony MDR-RF840RK Black Circumaural headphone :
The short editorial description of Sony MDR-RF840RK Black Circumaural headphone

MDR-RF840RK - Wireless headphone system with long battery life and 100m range
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Sony MDR-RF840RK Black Circumaural headphone:
The official marketing text of Sony MDR-RF840RK Black Circumaural headphone as supplied by the manufacturer
- Transmission range up to 100m allowing the freedom to move about at your leisure.
- 40mm driver units for deep bass response.
- Hassle-free recharging by placing the headphones on the dock (headphone charged via electromagnetic induction).
- Automatic On/Off for headphones making your batteries last longer.
- Rechargeable Battery will keep the music going.
- Battery playback time up to 15 hrs with rechargeable batteries or 28 hrs with Sony Alkaline batteries.
- Rotary Volume Control on Headphones.
Short summary description Sony MDR-RF840RK Black Circumaural headphone:
This short summary of the Sony MDR-RF840RK Black Circumaural headphone data-sheet is auto-generated and uses the product title and the first six key specs.
Sony MDR-RF840RK , Circumaural, 20 - 20000 Hz, 4 cm, Ferrite, Wireless, 100 m
Long summary description Sony MDR-RF840RK Black Circumaural headphone :

Sony MDR-RF840RK . Ear coupling: Circumaural, Headphone frequency: 20 - 20000 Hz, Driver unit: 4 cm. Connectivity technology: Wireless, Wireless range: 100 m. Battery life (max): 28 h, Battery technology: Nickel-Metal Hydride (NiMH), Battery type: AAA. Colour of product: Black. Weight: 300 g

This is an auto-generated long summary of Sony MDR-RF840RK Black Circumaural headphone based on the first three specs of the first five spec groups.

Thanks for ordering a data-sheet fix by Icecat.

Your data-sheet will be described/fixed in couple of days.

Headphones
Ear coupling *
Ear coupling describes the way in which headphones or earphones stay attached to, or inside, the ear. There are three common types of ear coupling: circumaural, supra-aural and intra-aural. Circumaural headphones enclose your ears with large pads that suppress external noise. Supra-aural headphones are typically more lightweight and sit on top of the ears with small pads. Intra-aural headphones come in two basic designs and neither style sits on the head itself. The first are ear buds, which sit just outside of the ear canal, on top of your ear lobes. The second type is actually inserted directly into the ear canal and offers some external noise suppression.
Circumaural
Headphone frequency *
The range of frequencies (low to high sounds) that the headphones can produce.
20 - 20000 Hz
Driver unit
4 cm
Magnet type
Type of magnet e.g. neodymium.
Ferrite
Ports & interfaces
Connectivity technology *
Wireless
Wireless range
100 m
Power
Battery life (max)
Maximum battery life. Mobile Mark™ (2002) is the standard often used to benchmark battery life time.
28 h
Battery technology
The type of battery in the device, e.g. nickel–cadmium (NiCd).
Nickel-Metal Hydride (NiMH)
Power
Number of batteries supported
The number of batteries that can be used with the product.
2
Battery type
Description of battery supplied with the product, such battery form factor (e.g. AA/AAA).
AAA
Design
Colour of product *
The colour e.g. red, blue, green, black, white.
Black
Weight & dimensions
Weight *
Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
300 g
Other features
Wireless technology
Technology that communicates with other devices without a physical connection e.g. radio, WiFi.
RF
Dimensions (WxDxH)
Dimensions of the product (Width x Depth x Height).
112 x 245 x 310 mm
Source Testseek summary Average rating
Reviews
Updated:
2015-01-01
Testseek has collected 3 expert reviews for Sony MDR-RF840RK and the average expert rating is 74 of 100. The average score reflects the expert community’s view on this product. Click below and use Testseek to see all ratings, product awards and conclusions.
74%
Country Distributor
España 1 distributor(s)
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