Herdio 6.5" In-Ceiling Bluetooth Speakers 600 Watts Home Audio

About this item Wireless Bluetooth Series Connection: TWS function lets you pair 4 speakers for a powerful true surround sound. (the HOST speaker and SUB speaker will automatically link with each other within 6 seconds after you turn on both, simple and easy to use) 100FT RANGE: Advanced 5.0 ensures more stable and instant pairing compared to 4.2 and lower; maintains a strong connection up to 100 ft unobstructed away from your device; 3.5mm aux-in jack for connecting devices Flush Mount Design： Compact flush mount design for simple easy installation in-wall / in-ceiling, or pre-cut speaker openings, for in-home use, office, professional, or custom audio applications on any flat surface. Mounts on Ceilings:Total Speakers Diameter 8.46 Inches (21.5 CM),Cut Out Diameter 7.3 Inches(18.5 CM),Speakers Depth: 4.33 Inches (11 CM) What's in the box: HCS528 speakers x 4, Speaker Connection Wires x 4, Bluetooth Amplifier Box x 2, Power adapter X 2. Note: Products with electrical plugs a