Review on Sony SRS-XB33 EXTRA BASS Wireless Portable Speaker – IP67 Waterproof, Bluetooth, 24-Hour Battery, Built-In Mic for Phone Calls (Red) by Matt Welch

Used almost 7 hours now continuously XB33Pros1. The battery is too good, lasted 6 hours, only 30% drop, including backlight in mode 2. U can be charged from any USB C3. This serves as a power bank to charge your mobile phone4. Live mode is good too5. Shockproof6. Dustproof7. Waterproof8. NFC works perfectly9. Bluetooth works like butter10. Difficult and very easy to mark his presence in a 2-room apartment. These are confirmed items.