Features

360° Sound & Lightshow: The JBL Pulse 4 portable Bluetooth speaker combines 360° sound with a 360° lightshow, bringing your music to life. The Pulse 4 houses two 2.25" transducers powered by a built-in 20W amplifier, plus two 2.25" passive radiators for full-range sound with punchy bass. Using the JBL Connect App on your Apple iOS or Android device, you can choose from a variety of lightshow patterns & colors.

Portable Waterproof Design: The JBL Pulse 4 Bluetooth speaker features a rugged plastic housing which will hold up indoors and outdoors. The Pulse 4 is waterproof (IPX7-rated) which means no more worrying about rain or spills; you can even submerge the Pulse 4 in water up to 1 meter (3') for up to 30 minutes. Its compact design fits easily into a backpack, so you can take it anywhere with you.

Bluetooth Audio Streaming: The JBL Pulse 4 is equipped with built-in Bluetooth 4.2 with support for wireless audio (A2DP 1.3) and control (AVRCP 1.6). You'll be able to stream stored music, music apps, and other audio content from your Bluetooth-enabled source device (such as your smartphone, tablet, laptop, or computer) to the JBL Pulse 4. You can control Play, Pause, & Skip functions from the speaker. However, you will still continue to use your Bluetooth-enabled device for advanced music navigation and to view song/artist information. The Pulse 4 can pair with multiple devices, but only one device can be active and used at a time. Once paired, the JBL Pulse 4 will automatically re-connect with the last paired device when in wireless range (up to 33').

JBL Connect App: Use the JBL Connect App (for Apple iOS 9.0+ or Android OS 5.0+) to wirelessly pair multiple JBL PartyBoost-compatible speakers together or to create a custom light show. Firmware and software updates for the speaker can also be done using the JBL Connect app.

• PartyBoost: Through the JBL Connect App, you can wirelessly pair two JBL PartyBoost-compatible speakers together for stereo sound or link multiple JBL PartyBoost-compatible speakers to create a bigger party (same audio source is played back through all JBL PartyBoost speakers).
  
• Lightshow: Customize the Pulse 4's lightshow by selecting from a variety of patterns and colors. Lightshow patterns include - Spiritual, Campfire, Equalizer, Wave, or Customized. You can even pick a custom color pattern using the app's color wheel or the camera on your phone (simply point your phone's camera at an object to select that color).

Rechargeable Battery: The JBL Pulse 5 Bluetooth speaker has a built-in Lithium-ion polymer rechargeable battery (3.6V/7260mAH) that provides up to 12 hours of playback time (varies by volume level and audio content). The Pulse 4 speaker includes a USB-C port and a 4' USB-C to USB-A cable to aid in charging the built-in battery. The battery can be recharged from a 3rd party USB/AC power adapter (sold separately) or a free USB port on your computer. A full battery charge takes approximately 3.5 hours @ 5V/3A.