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Sony MDR-RF850RK Black Circumaural headphone

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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.
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.
Article code :
The brand's unique identifier for a product. Multiple product codes can be mapped to one mother product code if the specifications are identical. We map away wrong codes or sometimes logistic variants.
Headphones come in all sorts of designs and qualities, so you will surely be able to find your perfect pair in our database!
Data-sheet quality: created/standardized by Icecat
The quality of the data-sheets 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: 18 Oct 2005
The date Icecat noticed for the first time that this product was included in the price list of a channel partner
Product views: 10302
This statistic is based on the 74646 using ecommerce sites (eshops, distributors, comparison sites, ecommerce ASPs, purchase systems, etc) daily downloading this Icecat data-sheet since 18-10-05 Only sponsoring brands are included in the free Open Icecat content distribution as used by 72914 free Open Icecat users.
Info modified on: 23 Nov 2017 15:01:41
The date of the most recent change of the data-sheet in Icecat's system
Long product name Sony MDR-RF850RK Black Circumaural headphone :
The short editorial description of Sony MDR-RF850RK Black Circumaural headphone

MDR-RF850RK - Wireless closed style FM headphones with long battery life and an incredible 100m range

Sony MDR-RF850RK Black Circumaural headphone:
The official marketing text of Sony MDR-RF850RK Black Circumaural headphone as supplied by the manufacturer
Rechargeable RF Headphones
Auto-recharge function by placing the headphones on the standing transmittor
Battery playback time up to: - 15 hrs with rechargeable batteries - 22 hrs with Sony Alkaline batteries
Volume Control on headphones
3-channel transmission
RF Transmission up to 100 m
Short summary description Sony MDR-RF850RK Black Circumaural headphone:
This short summary of the Sony MDR-RF850RK Black Circumaural headphone data-sheet is auto-generated and uses the product title and the first six key specs.
Sony MDR-RF850RK, Circumaural, Wireless, 18 - 22000 Hz, 9.52 oz (270 g), Black
Long summary description Sony MDR-RF850RK Black Circumaural headphone :

Sony MDR-RF850RK. Ear coupling: Circumaural, Headphone frequency: 18 - 22000 Hz, Driver unit: 1.18" (3 cm), Magnet type: Ferrite. Wireless range: 3937" (100 m). Battery life (max): 24 h. Weight: 9.52 oz (270 g). Color of product: Black

This is an auto-generated long summary of Sony MDR-RF850RK Black Circumaural headphone based on the first three specs of the first five spec groups.

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Ear coupling *
Headphone frequency *
18 - 22000 Hz
Total Harmonic Distortion (THD)
Driver unit
1.18" (3 cm)
Magnet type
Ports & interfaces
Connectivity technology *
Wireless range
3937" (100 m)
Battery life (max)
24 h
Battery technology
Nickel-Metal Hydride (NiMH)
Battery type
Color of product *
Weight & dimensions
Weight *
9.52 oz (270 g)
Other features
Wireless technology
Dimensions (WxDxH)
5.24 x 5.31 x 4.88" (133 x 135 x 124 mm)
Frequency range
20 - 15000 Hz (Transmitter)
Source Testseek summary Average rating
Testseek has collected 1 expert review for Sony MDR-RF850RK and the rating is 60 of 100. Click below and use Testseek to find all ratings, product awards and conclusions.