General Specifications Transducers 2 x 70 mm woofer / 2 x 2.75" , 2 x 20 mm tweeter / 2 x 0.75" Rated output power 2 x 25W RMS woofer + 2 x 25W RMS tweeter (AC power mode) Power input 5V/9V/12V/15V/20V, 3A Frequency response 53.5 Hz - 20k Hz Signal-to-noise ratio > 80 dB Battery type Li-ion 36.3Wh Battery charge time 2.5 hours (20V/3A input) Dimensions Dimensions (W x H x D)298.5 x 136 x 134 mm / 11.75 x 5.35 x 5.28" Control and Connection Specifications USB-A output:5V / 2.0A (maximum) Yes USB-C output：5V / 1.5A (maximum) Yes Total 2.5A maximum for USB-A & USB-C Yes Bluetooth® version 5.1 Bluetooth® profile A2DP 1.3, AVRCP 1.6 Bluetooth® transmitter modulation GFSK, π/4 DQPSK, 8DPSK Bluetooth® transmitter frequency range 2400MHz - 2483.5 MHz Bluetooth® transmitter power ≤ 12dBm (EIRP) 2.4GHz SRD frequency range 2407 MHz ~ 2475MHz SRD transmitter power: ＜10 dBm(EIRP) Yes الماركة جيه بي ال الحالة جديد