Comparison Tellur Vox 100 vs Tellur Vox 95

The nominal impedance of the earpiece or speaker installed in the device. This parameter is indicated in the specifications extremely rarely, and even in such cases it is purely for reference: the hardware of the device is initially optimized for the corresponding headphone/speaker impedance.

The sensitivity of the earpiece used in the headset (see "Device"); for speakerphones and car kits, a similar parameter is not fundamental, and therefore is not indicated.

The higher the sensitivity, the louder the earpiece will sound with the same power of the signal supplied to it. Accordingly, this spec primarily affects the maximum volume. However the actual loudness in models with the same sensitivity may vary slightly, but in general, the difference in sensitivity more or less corresponds to the real difference. However, note that too much sound adversely affects hearing. Therefore, it makes sense to look for a headset with a sensitivity above 100 dB if you often have to talk in a noisy environment such as a busy street, subway car, factory, etc. For relatively quiet conditions, you can take a more modest model.

The capacity of the battery installed in the device (see "Power").

Theoretically, a higher battery capacity allows you to work longer on one charge. At the same time, the actual battery life will also depend on the power consumption of the device, and it is determined by a number of technical specs. Therefore, it is better to evaluate battery life not by battery capacity, but by directly claimed operating time (see below). It makes sense to use this parameter if the operating time is not specified; at the same time, it makes sense to make conclusions only if devices similar in specs differ in capacity — for example, 60 and 110 mAh.

Time of operation of the self-powered device (see "Power") on one battery charge.

Usually, the battery life in the talk mode is meant, when the device consumes the most energy. In headsets with high-capacity batteries, this battery life can be 9 hours or more. However, talking for several hours without pauses is almost impossible, so in fact the operating time is noticeably longer than in the specifications. So, a headset with an operating time of the same 9 hours is most likely quite enough for a 12-hour work shift, even if you have to constantly make calls through it; and if we are talking about only 5 – 6 calls per day, then the charge is guaranteed to last for several days, or even a week. At the same time, the difference in the claimed operating time is usually quite consistent with the difference in actual battery life, and it is quite possible to compare the real capabilities of different models by it.