Elastic Headband: This Headlamp has an elastic headband for putting on and taking off which is very easy Widely Use: This headlamp is suitable for outdoor enthusiasts to do some outdoor activities such as fishing, riding This product is unique in that it can be retracted and focused, which is very convenient Q5 bulb: This product uses a Q5 bulb, so it will be very bright when you turn on the light Lightweight: This lamp is very lightweight, so it will not burden you when you wear it on your head