Name: Outdoor portable karaoke speaker. 
Product model: RB-X3. 
Product color: black. 
Product net weight: 3.05kg. 
Product gross weight: 4.1kg. 
Bluetooth version: version 3.0. 
Transmission distance: 10M.
Number of microphones: 2. 
Wireless microphone: support single microphone/dual microphone. 
Rated power: 15W. 
Charging voltage: DCV9.
Horn lights: Yes. 
Display: Yes. 
Battery: 2200mAh7.4V lithium battery. 
Product size: 261*160*364.5.