Product details:

SAFETY: Train safer with Always Aware eartips that are designed to let in ambient sound, allowing you to simultaneously listen to music and hear your surroundings.COMFORTABLE DESIGN: BackBeat FIT 3100, recognized as a 2018 CES Innovations Award Honoree, features a soft, flexible and secure fit earloop design that provides a comfortable fit and remains stable during your most rigorous workouts.LONG LASTING BATTERY: Bluetooth earbuds have up to five hours of wireless power so you can move more and charge less. Plus, a soft shell charging case stores your wireless earbuds and offers up to 10 additional hours of power between charges so you can listen even longer.WATERPROOF AND SWEATPROOF: IP57 rated durable, sweatproof and waterproof design protects the earphones from sweat, rain, and spills and can withstand your most rigorous workouts.BACKBEAT APP: Easily install firmware updates, personalize your earbuds with the new My Tap feature, and choose your preferred voice prompt language, all from the BackBeat app.
Recommended Use:Portable electronics
Brand:Plantronics
Headphone Feature:Waterproof
Battery Life:5 h
Accessories Included:charging case (740 mAh)
Microphone Included:Y
Wireless Technology:Bluetooth
Model:3100
Headphone Style:In-Ear
Headphone Type:Earbuds, Wireless Earbuds, In-Ear Headphones
Manufacturer Part Number:211856-99
Color:Gray
Manufacturer:Poly
Assembled Product Dimensions (L x W x H):1.40 x 1.00 x 1.90 Inches