About this item:

• Use Bluetooth Or AUX Connection Up to 6 Hours Working TimesTF Card access portBuilt-in microphone
• Bluetooth version :5.0
• Driver size : φ40mm
• Frequency Response :20Hz-18KHz
• Impedance :32Ω
• Playback Time : 6 hours
• Charge Time :2 hours
• Battery :3.7v 250mAh