For this Elvis Presley OTR, I prefer to regard it as the second generation of Elvis Presley, because it is also a retro style, similar in appearance design but with improvement in details, but with the same functions, the sound quality is still excellent. The theme of Elvis Presley's little prince OTR's main retro style is back to the 1960s to 60 '), the biggest intuitive change is that more exquisite packaging boxes, all metal bodies and a variety of color themes are available, and different colors also represent several classic events in the 1960s, such as this hippie red, which is a tribute to the event that hippies crossed the Red Golden Gate Bridge in San Francisco in 1967.

Featured travel storage box Walnut becomes a metal body with multiple antenna design

This storage box is a little different, very exquisite and beautiful. The reason why it is called a suitcase is that it is very similar to a suitcase suitcase in appearance design. It is completely a reduced version of the suitcase, which is very attractive. The front blank area can be pasted with your favorite personalized logo pattern according to your preference.

Compared with Elvis Presley's Walnut wood, OTR chooses zinc aluminum alloy as its material. The weight of 440 grams makes the fuselage very important. The seamless die-casting molding process with five sides and the shiny and smooth painting process make the appearance more clean and beautiful. The OTR is slightly smaller than Elvis Presley's little prince in volume, which is 92 * 65 * 56mm, while the OTR is 88 * 61 * 49mm.

In terms of back design, OTR still continues the design of Elvis Presley's USB/AUX interface and inversion hole, but in terms of FM listening, it has independently designed an open and closed antenna to enhance signal reception, so as to ensure that more stable radio programs can be heard indoors.

In terms of accessories, the most important change is that the original two in one USB/AUX special cable has become an independent USB power cable and USB/AUX special cable, and the length of the cable is also longer. However, there is no power adapter in the package. You can use the common 5V-1A or 1.5A Android phone power adapter for charging.

The two complimentary stickers are used to decorate the luggage for storage. They are really a good choice.

Familiar feeling, slightly improved FM knob experience

The front is the same as Elvis Presley's design, but the knob is painted with gold paint. The part that improves the knob experience is this FM knob. The resistance is no longer great, and it is easy to rotate and adjust.

The three functions of OTR are still Bluetooth mode, AUX mode and FM radio mode. The three modes and three lights correspond to the white, orange and green indicator lights at the lower left. The FM band turntable backlight of OTR is smaller than Elvis Presley in area, slightly darker in light and without Elvis Presley's logo. The indicator light at the top of the figure below is Elvis Presley, and the indicator light at the bottom is OTR.

The FM band is 87-108MHz. OTR can listen to FM radio without external antenna. Compared with the FM adjustment knob, the resistance of the lower volume adjustment key is slightly greater, while the resistance of the mode switch key is the largest, which requires force in operation. The FM adjustment knob and volume adjustment button can only be rotated within a certain range, while the multi-function button can be rotated 360 degrees clockwise or counterclockwise. The OTR of Elvis Presley is still a mono design, with a maximum output power of 5W. Behind the front grille is a loudspeaker, which cannot directly see the interior. Instead, a layer of sound absorbent cotton is added, which can be used to reduce the reflected wave and resonant frequency.

Is the rear antenna useful for receiving signals? yes. At the same indoor location, for some radio stations with noise, the signal strength will be enhanced and the definition will be improved after the wires are opened. At the same time, the number of receivers is the same as the number of radios on cars, and the number of receivers will not decrease due to reception problems.

Stable endurance in Bluetooth mode, stable connection, AUX output, convenient connection

The Bluetooth chip used by Elvis Presley OTR is CSR Bluetooth 4.0 chip, with stable performance and good compatibility. Several devices at hand, such as mobile phone, tablet computer and TV, can be connected and used normally.

The built-in 1000mAh rechargeable lithium polymer battery used by Elvis Presley OTR can play music continuously for about 6 hours and 29 minutes in the indoor environment with ASUS Eagle Eye (maximum volume) under the maximum volume setting and full power mode, which is close to Elvis Presley's continuous playing time. The continuous playback duration in Bluetooth mode has been very long, which greatly exceeds the playback duration of ASUS Eagle Eye mobile phone under full power.

In fact, AUX audio is the most convenient way to use. It is simple to use, plug and play. Whether it is used with mobile phones, tablets, computers, set-top boxes, you can choose the equipment you want to use with. As long as it is not at the highest volume, there will be no obvious burst sound in the audio output. However, it is recommended to give priority to Bluetooth connection, because the sound quality output is stable when the OTR is adjusted to the highest volume, and the noise reduction effect is very good.

The overall sound quality is stable, and the voice part can be heard directly without being hot

For any speaker, sound quality is the most fundamental requirement, and playing smart and multiple functions away from sound quality is playing rascal. For the performance of OTR in terms of sound quality, it has been improved compared with Elvis Presley. The burr and crackle at the highest volume have been significantly reduced, and the restoration of sound quality is more delicate, especially in the voice part. The following is a brief comment on the part of sound quality. Based on the actual listening effect of individuals, the content is limited by the limited cognition of individuals. At the same time, due to differences in human factors and equipment, the content is only for reference. The following auditions are in Bluetooth mode. The music files are mainly Flac ape。 The vocal part is stable and can be directly connected for audition, while the high and low frequency part of the initial hearing will feel that the separation is not enough, so it is necessary to warm up the OTR.

There is no sharp sense or burr sense on the high frequency, which is not transparent but the overall performance is stable. It can be shown relatively well in different types of instruments, and the switching between different instruments can be free and smooth without dragging. With Lindsey For example, Stirling's "Senbonzakura" is a song with a happy rhythm. OTR can show that happy rhythm, and can better show the percussion sound of the background in details. However, there is no chaos in the integration with voice and other instruments. The low-frequency performance is slightly dull but does not bang. The transient performance is relatively stable but the diving is not deep. It can restore the deep musical instruments, such as drums, cellos, etc. The switching is natural and smooth without drag. The separation from other musical instruments is high, and there is no confusion.

The vocal performance is the best among the three frequencies, with mellow voice and excellent analytical power. At the same time, the separation of vocals and musical instruments will obviously not have the feeling of mixing together, which can meet the audition of different vocal songs. No matter whether they are deep or high pitched, the songs with loud voice will not have sharp or explosive sounds, such as the "High pitched Kitchen Range Test". It's just a display of details. The breathing sound is OK, but it will make some drool songs affect the audition, such as One I love》。

Metal Elvis Presley OTR

For Elvis Presley series speakers, they are all FM Bluetooth multi-function speakers with retro themes, one is wooden body, the other is metal body, each has its own advantages, and a variety of colors are available, providing a variety of options for purchase. Although Elvis Presley's little prince OTR focuses on returning to the 1960s, it still has a great attraction for the post-80s generation. After all, his childhood was accompanied by black and white TV sets and radios. In fact, the most attractive color in OTR is retro green. At a glance, it can remind people of the green train they took for the first time in their childhood, which may also be a plot. If Elvis Presley and OTR can only choose one from the other, OTR is preferred, because the luggage package is more practical and beautiful, and the design and process details have also been significantly improved.