Bluetooth version 4.2 Battery type Lithium-ion polymer (3.7V, 3000mAh) Battery charge time 3.5 hours @ 5V1A Music playing time up to 12 hours (varies by volume level and audio content) General Specifications Bluetooth version 4.2 Support A2DP V1.3, AVRCP V1.6, HFP V1.6, HSP V1.2 Transducer 2 x 40mm Output power 2 x 8W Frequency response 70Hz – 20kHz Signal-to-noise ratio ≥ 80dB Weight 515g Dimensions (H x W x D)68 x 175 x 70 (mm) Battery type Lithium-ion polymer (3.7V, 3000mAh) Battery charge time 3.5 hours @ 5V1A Music playing timeup to 12 hours (varies by volume level and audio content) Brand JBL SKU JB523EL01PK1SNAFAMZ-34818 Model Flip 4 A Black