*Specification: Battery type: 180MAH lithium Play time: about 6 hours Charging time: about 2 hours Speaker type: bone conduction speaker Frequency range: 100hz18khz Sound pressure level: 88DB Microphone: - 42db Earphone weight: 45g USB charging cable: 40cm * Packing list: (a) Earphones...... 1pcs (b) Micro microphones...... 1pcs (c) Charging cable...... 1pcs (d) User manual...... 1pcs * Features: [Sound Collector]-Noise canceling and clear communication in noisy environment. The sound is picked up by a high-sensitivity microphone and transmitted to the bone conduction earphone. [Bone conduction mode in which sound can be heard through vibration without plugging ears] - Because the ears are open, there is no risk of ear inflammation. [Microphone cable connection] - the bone conduction of Microphone cable and the connection of loud microphone. * How to use: Easy to use: first, turn on the headset; Then, connect the earphone and microphone with a USB cable; The sound is heard from the earphone, and the bone conduction earphone and the microphone are successfully matched. * Warring: A. Before using the headset for the first time (or when it is not charged for a long time), you must use the charging cable to charge for 2-3 hours. (Note: headphones cannot be used during charging) B When the earphone is turned on, the surrounding sound dialed by the plug-in microphone will be amplified repeatedly in the vibrator, which may cause howling. The howling will stop automatically when you put on the headset. C. Put your headphones behind your neck. Please install the bone conduction sensor on the outside of the ear hole, not on the jaw in front of the ear D. when the battery power drops, the red indicator flashes. Please use it after charging . See more

[Package content] 1. Earphone 2. High sensitivity microphone 3. USB charging cable 4. User manual ? if the accessories are insufficient and electronic user manual is required, please fill in the order number and contact our company. If you have any problems with our production, please contact us by email and we will provide you with quality assurance. [Simple operation & portable folding design & 6-8 hours long operation] -Just turn on the ear power to adjust the volume! There is no difficult operation. It can be quickly folded into pockets and bags when not in use. It is easy to carry because it can be folded simply and compactly. The working time of 6-8 hours can be fully corresponded to the use of 1 day. It can be used for a long time on various occasions such as work, school and sports. [Microphone cable connection] - the bone conduction of Microphone cable and the connection of loud microphone. Easy to use: first, turn on the headset; Then, connect the earphone and microphone with a USB cable; The sound is heard from the earphone, and the bone conduction earphone and the microphone are successfully matched. [Bone conduction mode in which sound can be heard through vibration without plugging ears] - because it is a structure that transmits sound by giving vibration signals, you can enjoy the pleasure of sound without plugging your ears. Because you don't put it in your ears and don't block your ears, you can often notice the sound around you when you use headphones. Because the ears are open, they will not be steamed due to sweating, and there is no risk of ear inflammation. [Sound Collector]-Noise canceling and clear communication in noisy environment. The sound is picked up by a high-sensitivity microphone and transmitted to the bone conduction earphone. A high-sensitivity microphone unit capable of collecting sound in a large range (sound collecting range of 5 m) is adopted. The Omni directional condenser microphone also collects small sounds.