M-F8 Waterproof Hanging Single Ear Earbuds Bluetooth-compatible 5.2 Noise Cancelling Sports Wireless Business Headphones Headset Feature: Ear-hook design: Ergonomic, anti-drop ear-hook, according to the shape of the human auricle, the force points of the ears are dispersed, so that the ears are evenly stressed, and the earphones will not fall off even during strenuous exercise. Super standby: 20 hours of battery life, one charge can be used for a week. Deep noise reduction: The intelligent noise reduction for high-definition calls and the voice noise reduction technology for intelligent voice calls greatly optimize the clarity of the sound. High-definition surround sound quality: professional sound quality, 13mm high-quality moving coil unit, large composite diaphragm moving coil, bringing lossless HF sound quality; mid-low frequency diving surging, high frequency bright and transparent, creating your own version of the auditory feast. Composite diaphragm woofer, full and powerful bass; metal diaphragm high-frequency speaker, treble delicate and not harsh. Low Latency: The upgraded version of Bluetooth-compatible 5.2 tends to have low latency, enjoy wireless freedom, fast transmission within 10m distance; better compatibility and more stable connection signal. One-button operation: intelligent control, one-button headset can realize music, call, voice assistant, previous song, next song and other operations. IPX4 waterproof and sweatproof: The headset supports IPX4 waterproof and splash, sports headset. Specification: Item model number: M-F8 Material: ABS silicone Color: Black, White, Red, Green, Blue Bluetooth-compatible version: V5.2 Transmission distance: 10m Battery capacity: 75mAh Charging time: 60 minutes Standby time: 200 hours Charging method: USB charging Play/talk time: 20 hours music/20 hours talk Product size: 50*50*20mm Product weight: 3.5g