Herdio 6.5" 4 PCS 600 Watts Ceiling Speakers Home recessed Compatible with Bluetooth Speaker System perfect for, Kitchen,Bedroom,Bathroom,Covered Patio

Wireless Serise Connection:TWS function lets you pair 4 speakers for a powerful 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 Desgin：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 Speaker Diameter: 7.5"(19cm)，Cut-Out Diameter: 6.3"(16cm)，Total Speaker Depth: 3.15"(8cm)，Mounting Depth: 3.15"(8cm) What's in the box:6.5" speakers x 4 , Speaker Connection Wires x 4 Amplifier Box x 2,Power adapater X 2