Feature:1. HD Camera: This smart bike helmet comes equipped with a built in full HD camera with audio (supports maximum 128GB storage card, not included), wide angle 130 lens captures clear videos of your surroundings up to 1080P at 30fps.2. Enhanced Safety: The helmet is equipped with a front light for nighttime rides and rear warning taillights with three lighting modes: quick flash, slow flash, and constant light, ensuring your safety at all times.3. Waterproof and Long Lasting Battery: With an IPX5 waterproof design, you can ride through the rain without worry. It's fitted with a 1200MAH battery that supports approximately 8 hours of video recording.4. Sturdy and Durable Construction: The bike helmet is made from ABS shell, EPS liner, PC lens, a combination that offers maximum comfort, lightweight design, and enhanced impact resistance for safer road use.5. Multi Purpose Application: Perfect for capturing every moment during various activities, including electric bike riding, cycling, skateboarding, roller skating, skiing, ice skating, and more.Specification:Item Type: Smart Bike HelmetMaterial: ABS shell + EPS liner + PC lens.Battery: 1200mAh lithium battery (built in)Suitable Head Circumference: 54-63 cm/21.26-24.80in (size adjustable)Extended Memory: Maximum 128G memory card (memory card not included)Package List:1 x Smart Bike Helmet1 x USB Cable1 x Manual