Key features\n--Bluetooth 5.4 Technology : The green wireless earbuds use the bluetooth 5.4 chipset. There is a faster and more stable signal transmission and has successfully achieved low latency without interruption. Even if you put the mobile phone in your pocket, the bluetooth earbuds will not be disconnected, the connection distance is up to 33ft.\n--LED Power Display : The LED display on the charging case shows you the charge level of the case as well as the in ear bluetooth headphones, so you can precisely control the charge level of your headset for your convenience on the go. In addition, you can free your hands to make phone calls, switch songs and adjust the volume with the touch of the rose gold bluetooth wireless earbuds, making life so much easier.\n--Crystal clear calls: The Bluetooth in-ear headphones have 4 microphones and ambient noise suppression technology (ENC) allow high call quality. The machine learning based solution filters out ambient noise for good clarity.