Product details of EWA A118 Portable Bluetooth Wireless Speaker
- Product Type: Speaker
- Model: E03
- Clour: Black
- Brand: EWA
- Bluetooth Version: V 2.1+EDR
- Range: 10 meters
- Transmitting Frequency: 2.4~2.48GHZ
- Bluetooth Profiles: HSP, HFP, A2DP, AVRCP
- Driver Unit: 40mm
- RMS: 3W
- Frequency Response: 100HZ-18KHZ
- S/N Ratio: ≥85db
- Impedance: 2.6Ω
- Distortion: ≤10% (THD)
- Size: 62 x 62 x 48 mm / 2.44 x 2.44 x 1.89 inch
- Net Weight: 239 g / 8.43 oz
A device that converts analog audio signals into the equivalent air vibrations in order to make audible sound. When CRT monitors were the norm, speakers designed for computers were shielded to avoid magnetic interference with the CRT’s magnetic coil.
Speakers are made up of a cone, an iron coil, a magnet, and housing (case). When the speaker receives electrical input from a device, it sends the current through the causing it to move back and forth. This motion then vibrates the outer cone, generating sound waves picked up by our ears.
External speakers are connected to a computer or another device to give the sound more amplification (make it louder), add more bass with a subwoofer, or create surround sound. If you have a laptop, smartphone, or another device with built-in speakers, you do not need external speakers unless you need louder sounds, more bass, or surround sound.
Speakers are popular They receive audio input from the computer’s sound card and production audio output in the form of sound waves. Most computer speakers are active speakers, meaning they have an internal amplifier, which allows you to increase the volume, or amplitude, of the sound. Speakers usually come in pairs, which allows them to produce stereo sound from two different audio channels.