Specifications:
Material: ABS
Package Weight: 348g / 12.27oz
Package Size: 20.2 * 15.8 * 4.4cm / 7.95 * 6.22 * 1.73in

Transmitter:
Battery Capacity: Li-Po, 3.7V/450mAh
Charging Time: About 2.5 hours
Charging Voltage/Current: DC 5V/300mA
Transmission Frequency: 2.4GHz
Battery Life: About 6 hours (when fully charged)
Temperature Control: Auto stop charging if higher than 45°C / lower than 0°C
Weight: 23g / 0.81oz
Item Size: 82 * 26 * 13mm / 3.23 * 1.02 * 0.51in

Receiver:
Battery Capacity: Li-Po, 3.7V/240mAh
Charging Time: About 2.5 hours
Charging Voltage/Current: DC 5V/200mA
Battery Life: About 8 hours (when fully charged)
Frequency Range: 20Hz-20KHz
Transmission Frequency: 2.4GHz
Temperature Control: Auto stop charging if higher than 45°C / lower than 0°C
Weight: 32g / 1.13oz

System:
Low Latency Distance: ≥10 meters
Audio Delay: ≤20ms
Frequency Response: 20Hz-20KHz (@1KHz, -3dB)
Signal-to-Noise Ratio: ≥80dB(A+)
System Noise Floor: ≤-90db(A+)

Package List:
1 * Wireless Headphones
1 * Transmitter
1 * 6.35mm Jack Adapter
1 * Type-C Cable
1 * Audio Extension Cable
2 * Pairs of Spare Ear Fin
1 * Manual (English)