See Colour at Night The built-in starlight sensor and F/1.4 aperture let in all available light to show you true colour. Stay Charged with Forever Power Never worry about charging the battery. Just 2 hours of direct sunlight provides unlimited power. No Sunlight? No Problem The built-in 13,000mAh battery lasts up to 365 days, staying strong even in the cloudiest climates. BionicMind AI Empowers Your Security See the true potential of your security with BionicMind —providing facial recognition that differentiates between family and strangers with self-learning AI. eufy Dual Cam Video Doorbell E340 Dual Cameras, Double Security and 2K Resolution Two cameras work together to deliver advanced viewing. The front-facing camera focuses on people, while the downward-facing camera fills in the gaps with a view of the floor in front of your door. Colour Night Vision for a Clear View Introducing the industry's first dual-light system paired with an advanced light capturing and processing algorithm. Less blur than previous iterations of night vision and a significantly increased clear nighttime viewing distance of up to 5m. eufy Entry Sensor Monitor your doors and Windows Triggers Homebase siren and sends notifications to the eufySecurity App 2 Year Battery Life