Take big JBL Pro sound wherever you go. The bold, colorful JBL Go 4 ultra-portable Bluetooth speaker fits in the palm of your hand, delivering clear, loud JBL Pro Sound with rich, punchy bass. Its newly redesigned integrated loop makes it easy to bring anywhere, and the variety of colorways means you can choose one that fits your vibe. Plus it’s waterproof and dustproof, so it loves to go outside. And up to 7 hours of playtime means it will keep the good times rolling throughout a fun day trip or an evening chilling under the stars. Pair two Go 4’s for stereo sound, or wirelessly connect multiple JBL Auracast-enabled speakers for even bigger sound. Crank it up and let your music take you anywhere.  Output power (W)4.2  ,  Dynamic frequency response range (Hz)90 Hz – 20 kHz ,Dimensions (cm)9.4 x 7.8 x 4.2Dimensions (in) , 3.7 x 3.0 x 1.7 ,Weight (kgs)0.19  ,Weight (lbs)0.69 , Bluetooth profilesA2DP V1.4, AVRCP V1.Bluetooth frequency2400 MHz – 2483.5 MHz , Bluetooth transmitted ,  , ,     ,modulationGFSK, π/4 DQPSK , Bluetooth transmitter power≤ 9 dBm (EIRP) Bluetooth version5.3 ,Charging time (hrs)3 , Maximum music playing time (hrs)7 ,  BluetoothYes ,Charging cableYes ,SplashproofYes ,Supports AuracastYes , WaterproofYes ,WirelessYes ,Multi-Point ConnectionYes ,Rechargable batteryYes ,IP CodeIP67 DustproofYes ,1 x JBL Go 4 ,1 x Type-C cable ,1 x Quick Start Guide ,1 x Warranty Card and Safety Sheet