Applicable to various occasions. Small body, easy to carry, long call distance USB smart charging, efficient and convenient, supports computer/notebook/power bank charging Smart chip, encrypted anti--frequency, 16 channels, each channel is encrypted and portable, comfortable to wear, stable fit, no sense of wearing, not easy to fall Strong battery life Product model: Ear-hook intercom Standby time: 48 hours (24 hours of continuous use) Battery capacity: 2800mAh Effective distance: 500m Usage scenario: A 2W high-power intercom, suitable for KTV hotels, restaurants, 4S stores, etc Color:Black Material: PC Package Contents: 2 x Headphones 2 x Ear Hooks 1 x Data Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.