JBL Flip3 Splashproof Bluetooth Wireless Speaker Gray Bluetooth version: 4.1 Support: A2DP V1.3, AVRCP V1.5, HFP V1.6, HSP V1.2 Transducer: 2 x 40mm Output power: 2 x 8W Frequency response: 85Hz - 20kHz Signal-to-noise ratio: 80dB Battery type: Lithium-ion polymer (3.7V, 3000mAh) Battery charge time: 3.5 hours @ 5V1A Music playing time: up to 10 hours (varies by volume level and audio content) Dimensions (H x W x D): 64 x 169 x 64 (mm) Weight: 450g