Comparison Roidmi 3S vs Roidmi 2S
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|---|---|---|
| Roidmi 3S | Roidmi 2S | |
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2 USB ports for simultaneous charging of gadgets. Fast charging. Backlight. No microphone. | ||
| Type | FM transmitter | FM transmitter |
| Frequency range | 88.1 – 107.9 MHz | 88.1 – 107.9 MHz |
Features | ||
| Bluetooth |  | |
| Hands free |  | |
Interfaces | ||
| USB input | | |
General | ||
| Charging port | USB-A | USB-A |
| 24V support | | |
| Added to E-Catalog | november 2017 | october 2016 |
Compare Roidmi 3S and 2S
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Glossary
Hands free
The presence of a hands-free function in the FM transmitter.
The speakerphone implies the presence of Bluetooth (see the relevant paragraph) and allows you to conduct conversations by broadcasting the voice of the interlocutor through the car's speaker system. This is the best option for talking on the phone while driving — the phone does not need to be held in your hand, and the audibility is better than from the device's own speaker.
At the same time, it is worth noting that the presence of Bluetooth in the FM transmitter does not mean the presence of this function, it requires the presence of a microphone. However, there are also transmitters without a microphone. In one case, in order not to make the conversation public when there are other people in the salon; in the second case, for models without Bluetooth at all.
The speakerphone implies the presence of Bluetooth (see the relevant paragraph) and allows you to conduct conversations by broadcasting the voice of the interlocutor through the car's speaker system. This is the best option for talking on the phone while driving — the phone does not need to be held in your hand, and the audibility is better than from the device's own speaker.
At the same time, it is worth noting that the presence of Bluetooth in the FM transmitter does not mean the presence of this function, it requires the presence of a microphone. However, there are also transmitters without a microphone. In one case, in order not to make the conversation public when there are other people in the salon; in the second case, for models without Bluetooth at all.