Use: Portable Audio Player, Mobile Phone, Computer Special Feature: Bluetooth Wireless, Portable, Mini Channels: 2 (2.0) RMS: 4Ω,0.5 0.5Watts Material: Polyester Driver Unit: Stereo Frequency Response: 100Hz-20KHz Bluetooth Operation Range: Up to 15 Meters Color: Gray Hat Size: One size. Battery:

Use: Portable Audio Player, Mobile Phone, Computer Special Feature: Bluetooth Wireless, Portable, Mini Channels: 2 (2.0) RMS: 4Ω,0.5 0.5Watts Material: Polyester Driver Unit: Stereo Frequency Response: 100Hz-20KHz Bluetooth Operation Range: Up to 15 Meters Color: Gray Hat Size: One size. Battery: Lithium/120mHa Dimension: 280*220*22mm(H) Supports: Micro SD card, MP3, MP4, MID, PC, etc Technology V3.0 EDR lotus . Charging time: 2.5 hours. Continuous working time : about 6 hours. Standby time: 60 hours.