Diadema Vorago Hpb-300k Bluetooth/3.5mm Rosa/Blanco Kitten Rgb 6hrs

Ear coupling describes the way in which headphones or earphones stay attached to, or inside, the ear. There are three common types of ear coupling: circumaural, supra-aural and intra-aural. Circumaural headphones enclose your ears with large pads that suppress external noise. Supra-aural headphones are typically more lightweight and sit on top of the ears with small pads. Intra-aural headphones come in two basic designs and neither style sits on the head itself. The first are ear buds, which sit just outside of the ear canal, on top of your ear lobes. The second type is actually inserted directly into the ear canal and offers some external noise suppression.

The range of frequencies (low to high sounds) that the headphones can produce.

The effective resistance of an electric circuit or component to alternating current, arising from the combined effects of ohmic resistance and reactance.

Total harmonic distortion is a measure of non-linear harmonic distortion and is given in %. Non-linear harmonic distortions are signals which were not present in the original before the signal was converted by the headphones. These unwanted signals are caused by the diaphragm, whose movements do not precisely move in time with the electric signals that cause it to move. Unfortunately, this is a feature of all electroacoustic transducers. Although it cannot be completely eliminated, suitable steps can be taken to minimise it. However, the user is not interested in why this distortion takes place but in how great the level of distortion must be for it to become perceptible. According to the findings of several research projects, a total harmonic distortion of 1% in the frequency range of 100 to 2000 Hz is imperceptible. Below 100 Hz, the perceptibility threshold lies at 10%.

The characteristics of the microphone bulit into the device in terms of the reception of signals from all or just one direction, i.e. omnidirectional (better for concerts and the like vs unidirectional, more suitable for voice recording.

The range of frequencies (low to high sounds) that the microphone can pick up (detect).

Description of battery supplied with the product, such battery form factor (e.g. AA/AAA).

The type of battery in the device, e.g. nickel–cadmium (NiCd).

A measure of the charge stored by the battery. Determined by the mass of active material contained in the battery.

Number of hours on average for continuous play. This is dependent on the device battery capacity.

The voltage (V) of the battery.

Peso del producto sin embalaje (peso neto). Si es posible, se da el peso neto incluyendo los accesorios y suministros estándar. Tenga en cuenta que a veces el fabricante deja de lado el peso de los accesorios y / o suministros.