Features 1、1. Night safe: The strong light makes you more eye-catching in the twilight and rainy days. The best protection in the dark. 2、2. 3 light modes: It has 3 kinds of modes, slow flashing, fast flashing, and constant light. You can easily set it with a button. 3、3. Simple and flexible: The bracelet weighs 30 grams and is easy to use. It can be worn freely according to your needs. The bracelet is waterproof and sweatproof, prevents battery corrosion, and provides you with a bracelet that is not affected by the weather. 4、4. USB rechargeable: There is no need to replace the battery, and the shoulder strap can be easily charged with the included charging cable. 5、5. Multiple occasions: Suitable for jogging, running, biking, night walking, mountain climbing, and dog walking. Safer on the road. Specification Material: Nylon + LED electronics Size: 35*4cm(W*H) Luminous color: red/orange/blue/green Flashing mode: long light, fast light, slow light (switch control) Battery: 401225 battery, capacity 110 mA Charging method: USB charging Features: Splash-proof, washable detachable electronic equipment. Applicable occasions: outdoor sports, night running, large-scale festivals, concerts, corporate events, etc. Package List 1*Lighting Armband 1*USB Charging Cable