In the run-up to the test, we defined practical requirements and established the following test criteria:
- Control panel
To be able to evaluate these criteria, we have defined several tests for the conference speakers. First of all, the scope of delivery and functionality is checked. After the units have been put into operation according to the manufacturer's specifications, a telephone conference is simulated in a first test run.
The transmitter and receiver assess the transmission. Music is also played via the loudspeakers. In the further course of the test, the range of up to 25 metres between the transmitter and receiver is checked.
If the devices have a hands-free function, this is tested during a car journey. Other possible settings are also checked. In the tests, the devices are connected to mobile phones or laptops. User-friendliness and handling are assessed throughout the test series.
In order to exclude errors and to ensure that the devices are not subjected to the stress of everyday use, each test is carried out in several runs.
The test criteria receive percentage shares depending on their importance. The final mark is then objectively calculated from the test criteria using an algorithm.
Our product selection is based on the observation of the current market. In addition to popular brand products, we also include insider tips in our selection. Criteria such as price and range of functions are an important factor for us. The test field is also determined by analysis and evaluation of customer reviews and external tests (e.g. Stiftung Warentest).
The devices are purchased anonymously or borrowed from the manufacturer. Dealers and manufacturers have no influence on the tests and our evaluation.
As soon as new relevant products are introduced to the market, they are added to our test field. The new products undergo the same tests as already tested devices.