EF-0016 (TOPAZ)

• BT version: 5.0
• Wireless range: 10meters(without barrier)
• Speaker Specification: 10mm 16Ω
• Microphone Sensivity: -41dB ±2dB
• Transmission Frequency : 2400 ~ 2483.5MHz
• Playback / Talk time : up to 3.5 hrs
• Standby time: up to 80Hours
• Battery: 40mAh(Earphone), 300mAh(Case)
• Working Voltage:3.0V-4.2V
• Colour: Black and Yellow
• 1year limited warranty