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Portable speaker Sony Extra Bass SRS-XB33

16.05.2020

Sony has introduced a portable speaker Extra Bass SRS-XB33. It may also be of interest to those who spend time outdoors and place high demands on the endurance of electronic devices. The shock-resistant housing and IP67 rating make the Extra Bass SRS-XB33 a good choice for such cases.

From the younger model Extra Bass SRS-XB23, the Extra Bass SRS-XB33 speaker differs in shape, large size and weight. At the cost of increasing the size to 97 x 106 x 246 mm and weighing up to 1,1 kg, the designers were able to double the battery life, that is, the column works without recharging up to 24 hours.

The configuration and characteristics of the Extra Bass SRS-XB33 do not differ from the Extra Bass SRS-XB23. A pair of X-Balanced loudspeakers with non-circular cones and a pair of passive radiators are responsible for sound reproduction. The declared range of reproducible frequencies is 20-20 Hz. The Bluetooth 000 interface is used for connection. The list of supported profiles includes A5.0DP, AVRCP, HSP, HFP and SPP, while the list of codecs includes SBC, AAC and LDAC. For charging, use the USB-C port. Cable included.

The price of the new item is $150. Four color options are available.

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Flexible electronics with variable elasticity 28.12.2012

Swiss engineers have learned how to create composite materials with variable elasticity, which can be useful for creating flexible electronics. The work of scientists was published in the journal Nature Communications, and its summary is given by LiveScience.

Creating elastic electronics requires protecting those parts of the device that cannot be stretched, such as integrated microchips. At the same time, the direct connection of brittle and elastic components leads to the fact that when stretched, such devices are torn at the junctions.

Swiss engineers proposed to solve this problem by creating a material with elasticity that changes smoothly from point to point. To do this, they used a composite material - polyurethane with filler. By varying the amount of filler, the authors could make different parts of the material more or less elastic. At the same time, the mechanical properties in different parts of the same material differed by five orders of magnitude.

As a prototype, engineers made an elastic bandage with an integrated LED that could stretch more than three times. The LED was surrounded in the device by a zone of low elasticity, which, when stretched, prevented damage to it.

The authors believe that such materials can be useful not only for creating flexible electronics, but also for prosthetic tendons, which also have variable elasticity. Recently, Japanese engineers introduced a fabric with integrated LEDs, which, like the new material, was flexible, but could not stretch.

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