Description Package Includes: 1x Bluetooth Headset 1x USB charging cable 2x Batteries 3x Eartips(S/M/L) 1x User Manual Features & details 36-HOUR SUPER LONG BATTERY LIFE: This headset is creatively equipped with two replaceable batteries, which overcome the difficulty of battery shortage during the business trip, driving, meeting or traveling. Each battery supports 18-hour talking time and only takes around 2 hours full recharged FAST PAIRING AND WIDE COMPATIBILITY: This headset adopts the newest CSR chip provides quicker, more stable and wider compatibility with most Bluetooth enabled devices, including cell phones, tablets, and laptops. It can also connect to 2 devices at the same time. SUPER CLEAR FOR HANDSFREE TALKING: This Bluetooth headset has CVC6.0 noise-canceling microphone, which can reduce noises and enhances sound clarity for phone calls and music. Ideal for businessmen, trucker drivers, and others handsfree talking in various environments. RELIABLE COMFORTABLE TO WEAR: Thanks to customers` suggestions, this earpiece is designed by ergonomics, it will let the earbud fit your ear firmly, the lightweight material provides safe wearing without pain and the ears won’t feel discomfort after you wear a long time. Adjustable earbud fits perfectly for your left or right ear, bringing you brand-new wearing experience. PACKAGE: This lightweight & compact Bluetooth headset comes with a Core-Earpiece, two batteries, a user manual, and a charging cable.