Product Features

• Bluetooth Version: 5.3
• Transmission Distance: 10m
• Battery Capacity: 400mAh
• Frequency Response: 20Hz - 20kHz
• Sensitivity: 105 ± 3 dB
• Speaker Diameter: 40mm
• Call Playback Time: Approximately 7-10 hours
• Standby Time: About 120 hours
• Charging Time: Approximately 2 hours
• Built-in Microphone: Yes
• Usage Mode: Bluetooth / TF card MP3 mode (supports up to 32GB)
• Charging Voltage: 5V-1A
• Song Switching: Supported
• Volume Adjustment: Supported
• Call Management: Supports answering/hanging up calls
• Audio I/O Interface: Supported
• Brand: Echelon