2.4G ISM (Industrial Scientific and Medical) is a unlicensed band for wireless transmission from FCC(Federal Communications Committee). Frequency Range from 2.4G Hz to 2.484G. Hz. It's open for use in the world .
2.4G applied in speaker products
LUXEON AV adopt 2.4G Hz transmission into their speaker products. Sound quality closed to CD music quality. Our wireless products include wireless home theater speaker system and wireless portable speaker box.
Features of 2.4G speakers
Non-compression for high sound quality with delay time 0.5ms. Close to CD music quality. Digital audio with 44.1K sampling rate and 16-bit resolution. Operating at 2.4GHz ISM band with 8 selectable channels. Proper RF output power 10dBm to reduce interfering to other devices operating at the same frequency band. Application distance up to30 meter (L.O.S.) with perfect reception. FSK digital modulation/demodulation. 20Hz ~ 20KHz (-3dB) audio frequency response. Power-on function to prevent pop noise. Muting function when suffering interference or at poor receiving conditions.
Non-compression for high sound quality with delay time 0.5ms. 
