Specification:

• Model: TWS-X3
• Bluetooth version: V5.3.
• Remote communication: 10M
• Software support protocol: A2DP/AVRCP/HSP/HFP
• Battery type: polymer lithium battery
• Headphone built-in battery: 30mAh*2
• Standby time about : 240 hours
• Call time (volume 80%): about 4 hours
• Listen to the song (volume 80%): about 4 hours
• Charge time: about 1.5 hours
• Built-in battery in the charging box: 250mAh
• Battery input voltage: DC 3.7-4.2V
• Charging input voltage: DC 5V+/-0.25V
• Loudspeaker Size: 13mm
• Impedance: 32±ohm
• Sensitivity: 112±3dB
• Rated input power: 2mW
• Frequency response: 50Hz - 20KHz