Bluetooth version : V4.1
â?¢ Frequency response : 20Hz-20KHz
â?¢ Impedance : 4 ohms
â?¢ Working voltage : 3.7V
â?¢ Charging voltage : USB 5V 500mA
â?¢ Play time : 4-8 Hours
â?¢ Charging time : 2-3 hours
â?¢ Bluetooth transmission : 32ft
â?¢ AUX Audio : 3.5mm standard audio line
â?¢ TF Card : Support up to 32GB
â?¢ 3 Months Warranty
