Description: The earphone has stable connectivity, HiFi stereo sound, noise conduction, and low power consumption. It supports Bluetooth-compatible 5.3 devices. This bone conduction earphone allows you to enjoy 16 hours of uninterrupted talk time and 90 days of standby time. And it can be fully charged in about 2 hours. It is made of high-quality ABS and metal material. The length of this product is 12.8cm and width is 10.2cm. This wireless earphone will provide an immersive music experience. Item Name: Wireless Earphone Material: ABS, Metal Bluetooth-compatible Scheme: Jerry 7003 Bluetooth-compatible Version: Bluetooth-compatible 5.3 Wireless Frequency: 2.4GHZ Supported Protocols: A2DP1.3/HFP1.6/HSP1.2/AVRCP1.6/D11.3 Transmission Distance: 10 Meters Battery Capacity: 180mAh Charging Voltage/Current: 5V/1A Play/Talk Time: About 16 Hours Charging Time: About 2 Hours Standby Time: 90 Days Speaker Impedance: Diameter 10mm 32Ω Microphone Sensitivity: -42Db Working Temperature: -10 Degrees Celsius to 50 Degrees Celsius Earphone Type: Ear Hanging Playback Control: Yes Active Noise Conduction: Yes Features: Long Standby Time, Waterproof, Bone Conduction Size Details: L: 12.8cm/5.04", W: 10.2cm/4.02"(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Wireless Earphone 1 x USB Cable 1 x User Manual The earphone has stable connectivity, HiFi stereo sound, noise conduction, and low power consumption. It supports Bluetooth-compatible 5.3 devices. This bone conduction earphone allows you to enjoy 16 hours of uninterrupted talk time and 90 days of standby time. And it can be fully charged in about 2 hours. It is made of high-quality ABS and metal material. The length of this product is 12.8cm and width is 10.2cm. This wireless earphone will provide an immersive music experience.