Model: i18 5.0 R
Bluetooth version: 5.0
Speaker impedance: φ mm32Ω ± 15%
Microphone sensitivity: + -40DB
Wireless frequency: 2.405 GHZ-2.480 GHZ
Battery indicator: rechargeable lithium polymer battery ma * 2 + 400ma
Working temperature: -10-55 °C
Power: DC5V
Material: PC + ABS
Supported file formats: A2DP, AVRCP, HSP, HFP
Transmission power: level 2
Wireless distance: about 10 meters
Play time: 2-3 hours (the charging box can charge the headset 4-5 times)
Charging time: 1-2 hours

Package Includes:
2xmini Bluetooth Headphones
1xCharging box
1xUSB Charging Cable
1xUser Manual