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4pcs DC 3 24V Active Piezo Buzzer with Lead Wire 2312 High Decibels Continuous Sounder Electronic Buzzer Alarm 23x12mm June_2023_update 0 ✓ ✓ ✓ ✓ B006P1SR08 0 ✓ ✓ ✓ ✓ ✓ Battery Capacity 850mAh 850mAh 850mAh 850mAh 850mAh Simultaneously Conversation 4 2 2 4 4 Intercom Toggling 4（4 full duplex real time intercom） 6（1 host switching to other 5） 6（1 host switching to other 5） 4（4 full duplex real time intercom） 4（4 full duplex real time referee intercom） Talk Time Standby 10 hrs 10 days 10 hrs 10 days 10 hrs 10 days 10 hrs 10 days 12 hrs 20 days Itercom to Phone ✓ ✓ ✓ ✓ N A FM ✓ N A N A ✓ N A Applicable activities Motorcycle Innovating Science products Body Diameter : 23mm 0 Mounting Hole Distance : 30mm 1
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