CH-8612 Single 12inch 20W Trolley Speaker Wireless Trolley Bluetooth Speaker

• Model NO. : CH-8612
• Speaker Size :12inch x 2
• Output power : 20W

Q: How should retailers differentiate trolley speaker models within one product line?

A: Use a size and power ladder — 8-inch for small indoor parties, 10-inch for medium venues, 12-inch for outdoor events and performers. Each step up adds visible value (more wattage, bigger battery, mixer, wireless mics) so the higher price makes sense. Keep price bands non-overlapping so the models don’t compete, and buyers pick by budget and use case.