More and more headphone on the market that are specially designed to play music from mobile phones . Above all it is wireless, can transmit stereo audio wirelessly units. To achieve this, come equipped with Bluetooth, which is usually accompanied by other wireless technology, Near Field: NFC (Near Field Communication). By adding NFC, use with Bluetooth devices is simplified. Simply touch the logo NFC headset to activate the compatible pairing between the two devices and start listening to music on mobile phone. Some may also work with an audio cable, conventional style for use with any portable audio player or any other device that lacks Bluetooth. Besides this kind of headphones work as hands-free telephone answering . It is the case of these two developments: Sony MDR-ZX550BN and Sony MDR-AS800BT.
The Sony MDR-ZX550BN is some headphones with headband with a contemporary urban design. They are type supraauricular and are available in three colors: black, blue and red. We also have a system of noise reduction, so enjoy favorite songs not be disturbed by the environment. The music will sound clear to board a bus or on a street full of traffic. According to the manufacturer, 90 percent cancel ambient noise. For noise reduction function is necessary for the integrated battery lithium ion is charged. The maximum battery life with active noise reduction is 25 hours. The battery power is also needed in order to play music wirelessly and to use the headset as a handsfree. In those cases, autonomy is about 29 hours.
The battery of wireless headphones Sony MDR-ZX550BN recharged by USB cable supplied with micro connector. They weigh 167 grams and microphone is omnidirectional. Are closed type headphones that offer a frequency response between 20 and 20,000 Hz in Bluetooth mode. Transducers have a diameter of 30 millimeters to get a balanced sound that does not lack bass punch, and clarity to voices. MDR-ZX550BN costs 100 euros.
For their part, Sony MDR-AS800BT is few-ear with Bluetooth for specific sports. Its retail price is 130 euros. Withstands splashes of water, but cannot submerge; meet the standard of protection IPX4. Like the MDR-ZX550BN include NFC and Bluetooth version 3.0, which is compatible with the 2ADP profile. The range of the Bluetooth is ten meters. They weigh 16 grams, not counting the pin. Incorporate a lithium battery takes two hours to fully recharge ions; autonomy is 4,5 hours max.
Sony MDR-ZX550BN and Sony MDR-AS800BT, Bluetooth headsets
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