[Product Information]

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BICYCLE SPEEDOMETER: The Wireless & Waterproof Bike Computer accurately displays Average Speed, Riding Time and Riding Mileage with the backlit LCD screen.
POWER BANK: With 4400mAH Lithium battery inside, the device can be used as a portable power bank, supports most of the phones and tablets in the market. No more worries about the phone will be dead during the ride
MUSIC PLAYER: Connect your phone with the device through the bluetooth, you can use it as a music-player during the ride. With the TF card slot, you can store as many songs as you want.
BLUETOOTH SPEAKER: Built-in bluetooth speaker, the device can connect your phone within 33ft, it can be used as a speakerphone when you make a call to ensure the safety during the ride.
LED FLASHLIGHT & BELL: Built-in 250LM LED Flashlight, it features Glare and Flash modes, the lighting range will up to 55 Yards. With an electronic bell inside, you can warn the danger during the cycling.