Neck-mounted Wireless Bluetooth Headset With Digital Display Function Large-capacity In-ear Sports Neck-mounted Bluetooth5.0 Features: Lossless sound quality enjoyment, immersive sound, wide frequency range, provide powerful experience, capture more sound details Clear binaural calls, just like face-to-face communication, using intelligent noise reduction calls, intelligent noise filtering, making calls clearer Intelligent LED digital display power, clearly visible, no need to worry about use, the current power of the headset is clearly visible at a glance Upgraded-core charging 100H long-lasting battery life, no need to worry about running out of power when listening to songs, charging for 2-3 hours, listening for 100 hours The hard core upgrades the new Bluetooth 5.1. Compared with the old version of Bluetooth, the transmission distance is increased by 25%, the signal stability is strengthened, and the power consumption is reduced by 15% Product Description: Specification: Material: abs Size: Ear wire length about 20cm/7.9in Bluetooth version 5.1+EDR Sensitivity: 101.7dB+/3dB Signal-to-noise ratio: 95dB Battery capacity: 1000MAH Headphone charging current: 5V=1A Playing time: about 120 hours Package List: 1 x earphone Notes: Due to different displays and lighting effects, the actual color of the product may be slightly different from the color shown on the picture. Thanks! Due to manual measurement, please allow slight measurement deviation.