• 5.1 Bluetooth version
• Stereo channel system
• Frequency response: 20 Hz - 20 kHz.
• Input voltage of the charging compartment: 5 V, 500 mAh
• Playing time: approx. 3-4 hours.
• Headphone battery capacity: 40 mAh.
• 300mAh battery capacity
• 13mm drive unit
• 1 hour charging time
• 3.5-hour call duration
• 3-4 hour music duration
• HSP / HFP / A2DP / AVRCP support protocol
• 5V DC input charging standard
• 2.402G - 2.480G Bluetooth operating frequency
• 10m / 32.81ft maximum transmission distance