Sanag A5S Ultra Long Standby Bone Conduction Bluetooth Headset Bluetooth Headset Feature: 9D HIFI sound effects Open wireless headphones surround the directional sound field, open design, only 18g, sweatproof and waterproof, small body life Wear comfortably without ear clips, protect ears from damage Surrounding directional sound field The speaker adopts physical ecological diaphragm technology The headset is only 18g, light and wearable 120mah battery life, Bluetooth 5.0 chip, lower power consumption, stronger battery life, IP67 life waterproof 5.0 Low power consumption is the core technology of the headset. It adopts an exquisite energy-gathering cabin design and a built-in large-capacity lithium battery to escort your headset. Bluetooth Headset Specifications: Product model: A5 Chip: Lanxun /Jerry Bluetooth version: 5.0 Bluetooth distance: 10M Headphone speaker: 20HZ-20KHZ Battery capacity: 120mah Maximum charging voltage: 5V Talk time: 8 hours Playing time: 8 hours Charging time: 1.5 hours Product color: black / red /gray / blue Function: call function / support music Package Included: 1*Earphone 1* Charging cable 1*Manual Before you place an order, please provide me with English information to facilitate our delivery and logistics Note: 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.