Features: 1. Long lasting power: Enjoy 7 hours of listening from a single charge, and extend it to 40 hours with the compact charging case. For a quick energy boost. Charge the headphones for just 10 minutes and for 1 hour to listen. 2. Incredible Call Quality: Using the latest cVc noise reduction technology and 4 microphones (2 per earbud), Vida P2 improve wireless headphones pick up voice. And remove background noise for clearer calls. 3. Mono / Stereo Modes: Just remove one of the headphones from. The charging case to automatically enter mono mode. Or remove both for stereo sound. Totally Waterproof 4. Life P2 wireless headphones have IPX7-rated waterproof protection: To easily resist liquids. They can even be rinsed with water. 5. Seriously Strong Connection: connection creates an unbreakable. Between the device and the Vida P2 wireless headphones for. Skip-free audio even in busy spaces. Description: This headset is small in size, easy to carry, good sound quality and low noise, a very practical headset. Specifications: Wireless version: version 5.0 Transmission distance: 15-18 meters outdoor straight line distance Battery capacity: polymer lithium battery 40mah Charging box battery capacity: 400mah Music time: 3.5 hours Talk time: 5 hours Standby time: 720 hours Charging time: 2 hours Working current: 22MA Standby current: 4uA Package Included: 1 set*wireless headphones(with battery) Notes: 1. Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from real object.