JBL Flip 4 is a portable Bluetooth speaker that delivers surprisingly powerful stereo sound. This compact speaker is powered by a 3000mAh rechargeable Li-ion battery that offers up to 12 hours of continuous, high-quality audio playtime. Sporting durable, waterproof fabric materials that are available in 6 vibrant colors, Flip 4 is the all purpose, all weather companion that takes the party everywhere. It also features a built-in noise and echo cancelling speakerphone for crystal clear conference calls, and JBL Connect+ technology that can wirelessly links more than 100 JBL Connect+ enabled speakers together to amplify the listening experience. With a simple button press, you can activate and talk to Siri or Google Now from your JBL Flip 4. General Specifications Output power (W) 2 x 8 Dimensions Dimensions (cm) 6.8 x 17.5 x 7.0 Weight (kgs) 0.51 Control and Connection Specifications Bluetooth version 4.2 Battery Battery capacity (mAh) 3,000 Charging time (hrs) 3.5 Maximum music playing time (hrs) 12 Features Auto-power off Yes JBL Connect+ Yes 3.5 mm audio cable Input Yes Speakerphone Yes Voice Assistant integration Yes Charging cable Yes Waterproof Yes Wireless Yes Bluetooth Yes In like new condition.