Technical Specifications General specification Model No.: JBL Charge Essential 2 Transducers: 52mm x 90mm woofer/ 2.05 x 3.54", 20mm tweeter/0.79" Output power: 30W RMS for woofer, 10W RMS for tweeter Frequency response: 60Hz – 20kHz Signal-to-noise ratio: >80dB Battery type: Li-ion polymer 27Wh (equivalent to 3.6V/7500mAh) Battery charge time: 4 hours (5V/3A) Music play time: up to 20 hours (dependent on volume level and audio content) Cable type: USB-C charging cable Cable length: 1.2m/47.2" USB specification USB charge out: 5V/2A (maximum) Wireless specification Bluetooth® version: 5.1 Bluetooth® profile: A2DP 1.3, AVRCP 1.6 Bluetooth® transmitter frequency range: 2400MHz – 2483.5MHz Bluetooth® transmitter power: ≤ 12dBm (EIRP) Bluetooth® transmitter modulation: GFSK, π/4 DQPSK, 8DPSK Product dimensions Dimensions (W x H x D): 220.0 x 96.0 x 93.4 mm/ 8.7 x 3.8 x 3.7" Net weight: 0.93kg/2.05 lbs Packaging dimensions Dimensions (W x H x D): 258 x 128 x 119mm/10.1 x 5.0 x 4.7" Gross weight: 1.58kg/3.48 lbs