Features: 1. Using Qualcomm Bluetooth 5.0 chip, it is more power-saving, low-latency, no noise, and achieves stable and high-quality audio transmission. 2. Large capacity battery design, lasting life, ridiculously long. 3.40MM graphene diaphragm, unique horn structure, HIFI level sound quality. 4. Adopt CVC intelligent noise reduction, ultra-high sensitivity anti-noise silicon microphone and wind-proof noise microphone cover to ensure the quality of the call. 5.Supports 500-meter two-person intercom calls, and also supports pairing with a third party to achieve intercom. 6.IP67 deep waterproof, friction journey, accompanied all the way, without fear of rain splash, or mud dust invasion. Specification: Bluetooth version: 5.0 Battery capacity: 1000 mah Sound channel: bilateral stereo Microphone: Hard microphone Function: Voice control Transmission distance: 10 meters Waterproof class: IP67 Endurance time: 32 hours Color: Black Sound quality: HIFI grade sound quality Product List: 1 x Earphone 1 x Earphone Base 1 x Microphone Set 1 x Velcro Set 1 x Charging Cable 1 x Instruction Manual