• Brands: A4 Tech
• Model: HEAD PHONE-RH-300
• Categories: Head phone
Product name : Wireless 2.4G HD Headset
Design : on-the-Head
Function button for : Volume±, Power switch
Frequency range : 20Hz-20KHz
SNR : 90dB
Voltage : 3.7V
Current : 37.5mA (Medium volume)
Li-Battery capacity : 300mA
Charging time : 1.8 hours
Driver Unit : 40mm
Effective Range : 10M, 360°
Warranty : 06 Month