JBL Flip 4 Portable Wireless Speaker with Powerful Bass & Mic (Black) Colour:Black   JBL Flip 4 is the next generation in the award-winning Flip series; it 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 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. What’s in the box: 1 x JBL Flip 4,1 x JBL Micro USB Cable,1 x Safety Sheet,1 x Quick Start Guide,Warranty Card Technical specifications: Bluetooth version: 4.2 Support: A2DP V1.3, AVRCP V1.6, HFP V1.6,HSP V1.2 Transducer: 2 x 40mm Output power: 2 x 8W Frequency response: 70Hz – 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 12 hours (varies by volume level and audio content) Bluetooth transmitter power: 0 – 9dBm Bluetooth transmitter frequency range:2.402 – 2.480GHz Bluetooth transmitter modulation: GFSK,π/4-DQPSK, 8DPSK Features: Waterproof:Yes Voice Assistant integration:Yes JBL Connect+:Yes Speakerphone:Yes Bluetooth:Yes 3.5 mm audio cable Input:Yes Auto-power off:Yes