Model: OPSIS-II
Bluetooth® version: 5.0
Rated power: 20W RMS
Frequency response: 60Hz – 20kHz
Signal-to-noise ratio: >80dB
Battery type: Lithium-ion Polymer 7.4V, 4000mAh
Battery charge time: 4 HOURS (5V/2A)
Music playtime: up to 20 hours (varies by volume level and audio content)
Bluetooth® transmitter power: +10 dBm(Maximum)
Bluetooth® transmitter frequency range: 2.402 – 2.480GHz
Dimension (W × D × H): 170 x 70 x 75mm
Weight: 653g