Product Name: Square Wireless Professional Portable Rechargeable DJ Sound Box Bluetooth Speaker Model NO.: S-012 Compatible Product: Universal Display Type: Without Display SNR: 81-90dB Chargeable: Chargeable Special Function: Memory Card Support, USB Disk Support Sound Channel: 2.0 Usage: Portable Player, Mobile Phone, Computer, Stage/DJ, Home Theatre System, Karaoke Speaker Material: Plastic Amplification Type: Active Type: Bluetooth Speaker Trademark: HUACATEN Transport Package: Box Origin: Putian HS Code: 8518210000 Product Description Technical parameters:Bluetooth version: 2.1 Bluetooth solution, support A2DP AVRCP protocolBattery capacity: 500 mAWorking hours: about 2 hours.Transmission distance: 10 meters in theory, 15 meters in practice.Size: 60 mm (diameter) *50 mm (high)Charging mode: MINIUSB 5VCharging time: depending on input power, it usually takes 1-3 hours.Speaker power: 45mm 4 Omega 3WFrequency response: 280Hz-16KHzNet weight: 230 gramsSignal to noise ratio: >=95dBDistortion: <=5%Packing information:Machine size: 6*6*5.3cmBox size: 6.5*6.5*7.5cmNet weight: 166gPack weight: 200gPacking quantity: 100pcsOuter box size: 32*32*32.5cmGross weight: 20.5kg/ pieces.