JBL PULSE 4 SOUND DEMO - versus Pulse 3 and Pulse 2 - YouTube
Editor's Review: JBL Pulse 2 portable Bluetooth speaker - FREESKIER
JBL Pulse 3 review: Still fun, still a killer speaker - SoundGuys
JBL Pulse 4 Review - Its Completely Different From The JBL Pulse 3 — GYMCADDY
Editor's Review: JBL Pulse 2 portable Bluetooth speaker - FREESKIER
Hands-On With The JBL Pulse 2 Bluetooth Speaker
JBL PULSE VS PULSE 2, A PULSE 2 Review - ZRZ - YouTube
Amazon.com: JBL Pulse 4 - Portable Bluetooth Speaker with 360 degrees LED lights, powerful sound and deep bass, IPX7 waterproof, 12 hours of playtime, JBL PartyBoost for multiple speaker pairing (White) : Electronics
JBL Pulse 5 Review And compared To JBL Pulse 4 and JBL Pulse 3 — GYMCADDY