Mini Bluetooth Headset Wireless Bump Control In Ear Black TechnologyFeatures: Fast pairing pick up pairing for binaural calls, born for fast pairing With Bluetooth 5.1, the connection speed is faster and more stable, which greatly reduces the wireless delay, and makes listening to songs and playing games smoother and more enjoy The small and lightweight headset is just close to the ear and comfortable. It is tailored for the ear, so that you can easily wear it without feeling comfortable Dual earphones can listen to music for 9 hours and talk time for 10 hours when fully charged. They can stand by for 300 hours when used with a compact charging box. Earphone touchs operation, call, listen to music, touchs switching, fingertip touchs to complete instructions, relieve pressure when using.Product Description:Basic parameter:Bluetooth version: V5.1Standby time: 300 hoursTalk time: 10 hoursMusic time: 9 hoursCharging time: 1.5 hoursBluetooth frequency: 2.402g-2.480gCharging cabin capacity: 300mAhEarplug capacity: 50mahCommunication distance: 10MSupport protocols: HSP, HFP, A2DP, AVRCPMaterial: ABS + siliconecontain:1xBluetooth Headset Wireless,1xUSB