The light is red when charged, and blue light on when fully charged.
CONNECT TWO DEVICES SIMULTANEOUSLY : Allow two bluetooth devices to connect at the same time. Even two cell phones, you will never miss a call. Universal and compatible with most of bluetooth enabled computer, laptop, tablet and cell phones.
LONG-LASTING BATTERY LIFE : The built-in lithium-ion battery provides up to 120 hours for stand-by and up to an amazing 5 hours for music or 6 hours continuous talk. It only takes 2 hours to get fully charged. With 33ft (10meters) bluetooth working range.
HD Stereo and Noise Cancelling: CSR Bluetooth V4.1, EDR Audio Decode Technology and CVC 6.0 Noise Cancelling technology ensures high definition fidelity sound for both calling and listening music.
Enjoy Wireless and Hands Free Communication: No need to plug into your cell phone. The wireless Headphone cuts the cord with powerful Bluetooth V4.1. No matter you're calling, or go hiking, just enjoy amazing audio, high fidelity and stable signal transmission at the range of 10m without any barrier
You can get: bluetooth headsets, instructions, multi-size earplugs, earphone packages box,offers 30 days money back & 12-month worry-free guarantee.