Replacement USB charger compatible with Fitbit Alta HR Heart Rate Fitness tracker; not compatible with other models. Does not include reset function. Fitbit Alta HR device and band are not included. Safety Design: This charger features a built-in voltage regulator to protect your Fitbit Alta HR from damage due to overcurrent and short circuits. Plug into a USB port on a PC, laptop, Mac, or notebook. If using a wall adapter, ensure the output current does not exceed 1A. High Quality and Durable: Made with high-quality materials, this replacement charging cable withstands over 2000 insertion and removal cycles. Compact and lightweight design ideal for travel and daily use. Cable Length: 100cm (approximately 3.3ft), providing ample reach. Keep an extra charging cable at home, in the office, in the car, or while traveling for convenient charging. Safe and efficient charging with a durable, lightweight, and portable design. Easily fits in a purse, backpack, or glove compartment. Protects your Fitbit Alta HR from overcurrent and short circuit damage. Provides reliable and fast charging performance. Color: Black Material: Plastic Package Contents: 1 x Charging Clip Note: Other items not included. Due to lighting and display differences, actual product color may vary slightly from images. Measurement tolerance: ±1-3cm.