Product Name: Ball Ceiling Mounted Speaker White Model NO.: SD-928W SNR: 91-100dB Structure: Closed Enclosure Sound Channel: 2 Adjusting Method: Keystoke Usage: Stage/DJ, Karaoke, Home Theatre System Speaker Material: Plastic Amplification Type: Passive Power: 10-20W Frequency Response: 90-16kHz Length: 40cm Ball Size: 180x655mm Trademark: Houna sound/OEM Transport Package: Colour Box/Master Carton Specification: 5inch Origin: China HS Code: 8518290000 Product Description 10/20W Ball Ceiling Speaker for PA Public Address SystemItem NO:SD-928WSpeaker5"MaterialABSRear enclosureYESRatedPower10/20WSensitivity91dBFrequency Response90Hz-16KHzColorWhiteDelivery15-30daysApplication• Used for: home audio system, home ground music system, public address broadcasting system, multimedia speaker system, PC speaker system, etc.• Apply occation: home, coffee shop, teashop, restaurant class, meeting room, public transportation, playground, public address broad casting,etc.