Port	Wireless
The headphones connection to the computer. A cable for a long-term and stable sound experience is the most popular type of connection. If you want to enjoy the wireless freedom you should choose wireless or bluetooth headphones, still in this case you have to accept the regular replacement of batteries or charging of a battery pack. A computer sound card is required for connecting headphoes to the computer. Prior to buying bluetooth headphones you should verify that your computer has a bluetooth receiver. If there is no receiver ask our managers whether the receiver is included with the selected model of headphones.
Type	Headphones
The type of application of headphones. If headphones are used only for chatting via Skype, ICQ or another communication network we recommend to buy headphones with a microphone.

Special features - * 40mm driver - Hi-Fi quality digital sound for home, with powerful 40mm Neodymium driver unit and long stroke diaphragm for deep clear bass; * RF wireless - Radio Frequency transmission technology offering a huge 100m listening range; * Cordless style - Closed type headphones with wireless connectivity and built-in volume control for the ultimate freedom to listen around the house; * Easy set up - Tune and go: Automatic tuning and on/off switch, plus comes with all the cables you need to plug into your TV; * Simple connectivity - Stereo mini plug easily connects your headphones to TV and audio devices around the home; * Lightweight and long-lasting comfort; * Long battery life - Battery playback time of up to 28 hrs with AAA Alkaline battery - 13 hrs with rechargeable NihM battery
Frequency Range - 20 - 20,000 Hz
Type - Wireless headphones
Driver units - 40mm driver
Vendor's URL - http://www.sony.lv/product/hed-home-entertainment/mdr-rf810rk#pageType=TechnicalSpecs
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Name - Sony headphones MDR-RF810RK Wireless, 100m range, 40mm driver unit, closed type, AC power adaptor, rechargeable/AAA batteries
Warranty - 24 months
GrossWeight - 0.94 kg