Description: Built-in rotatable shaft, easy to rotate 180°,Wear regardless of left or right,the comfortable angle can be adjusted arbitrarily according to your wearing habits,and not easy to fall Smart one for two, support to connect two mobile phones at the same time, and you can answer calls from any device at any time, allowing you to make calls and entertainment Extended microphone, accurate and clear reception, type c fast charging port, soft silicone ear hooks, non-ear ear caps 5.2 chip,brings efficient and convenient use, -low latency voice synchronization,10m transmission distance Noise reduction system,deep noise reduction, making calls as clear as face-to-face Specification: protocol: bt5.2 Channel: stereo Usage: hanging ear type Whether single or double ears: unilateral hands-free Battery capacity: 95mAH Listening time: about 10h Talk time: about 10h Charging time: about 2h Transmission range: 10 meters Standby time: about 90 days Transmission frequency: 2.4ghz Charging voltage: DC5V Material: Plastic Size Chart: 76x11x10mm/2.99x0.43x0.39inch Package Includes: 1 Piece Earphone 1 Piece Charging Cable Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!