Portable all-in-one, full-featured waterproof Bluetooth speaker to take with you everywhere. Wirelessly stream music via Bluetooth for up to 5 hours of continuous JBL quality sound. Making a splash with its new IPX7 waterproof design, GO 2 gives music lovers the opportunity to bring their speaker poolside, or to the beach. GO 2 also offers crystal clear phone call experience with its built-in noise-cancelling speakerphone. Crafted in a compact design with 12 eye-catching colors to choose from, GO 2 instantly raises your style profile to all-new levels. General Specifications: Bluetooth version: 4.1. Support: A2DP V1.2, AVRCP V1.5 HFP V1.5, HSP V1.2. Transducer: 1 x 40mm. Output power: 3.0W. Frequency response: 180Hz - 20kHz. Signal-to-noise ratio: ≥80dB. Battery type: Lithium-ion polymer (3.7V, 730mAh). Battery charge time: 2.5 hours. Music playing time: up to 5 hours (varies by volume level and audio content). Dimensions (H x W x D): 71.2 x 86.0 x 31.6 (mm). Weight: 184g. Bluetooth transmitter power: 0-4dBm. Bluetooth transmitter frequency: 2.402-2.480GHz. Bluetooth transmitter modulation GFSK/DQPSK/8DPSK. Included: 1 x JBL GO 2, 1 x Micro USB cable for charging, 1 x Quick-start Guide, 1 x Safety sheet, 1 x Warranty card. Color: Ash Gray