JBL PartyBox 310 vs Sony ULT Field 7

The Sony ULT Field 7 is the better all-round pick for most shoppers. It is lighter, tougher with IP67 dust and water protection, lasts up to 30 hours, and adds a mic input for karaoke. The JBL PartyBox 310 wins on raw output at 240 W, a synced light show, and wheeled transport for large rooms and outdoor parties. Owners praise the Sony's bass and battery; the JBL is the louder, heavier machine.

• Choose the JBL PartyBox 310 if you need maximum volume and a beat-synced light show for big rooms or outdoor parties and can handle a 38 lb speaker on wheels.
• Choose the Sony ULT Field 7 if you want a portable, dustproof, 30-hour speaker with karaoke input and deep bass that is easy to carry and rinse off.