Ring – Video Doorbell Pro Adapter (DinRail)

Bluetooth version: 5.0Transmission distance: 10mPlaying time: 80-100 hoursBattery capacity: 500mahImpedance: 32 ohmsFrequency response: 50Hz-20kHzRated power: 3mWDrive unit: 14mmInput: DC 5V 80maStandby time: 3 monthsCharging time: 2 hoursSilicone hanging neck design, free to bendButton separation design, switch at willMagnetic absorption design to prevent slipping and loss