Color: Red, blue, green, yellow
Style: Built-in replaceable button battery
1) Whether the battery can be replaced?
2) What’s the flash mode?
A: Long bright, fast flash, slow flash, close.
3) How long the battery can be used?
A: About 50 hours.
4) Where to buy the battery?
A: Watch shop, Electronic mall, supermarket.
5) Battery model?
A: CR2032 button battery.
6) If you choose ship by epacket, the goods will without the battery, because with the battery may not pass security, hope to understand.