Collar Style Bluetooth Earphones Wired Recorder Can Be Inserted Into Card Features: 5.3 Bluetooth earphones, collar clip style Bluetooth, can be clipped the collar, not easy to fall off, convenient to carry. Strong texture, strong sound quality, different wearing sensations, Bluetooth earphones, comfortable to wear all day. Whether it's playing games, running, or daily life, everything is very casual. Listening clearly and without noise anytime and anywhere is the key to enjoying life. Power connection, automatic connection and automatic matching, barrier 10 meter connection: not bulky, fast charging interface, easy to implement. long battery life, directional, and long-lasting battery life. It can be inserted into card, connected via Bluetooth, or used as recording device for meetings. Product Description: Product Description: Bluetooth version: 5.3 Earphone size: 5.5 *.7 * 2CM, line length 30cm Connection distance: 10 meters Headphone power: 140mAh Charging time:1.5 hours Usage time:8-10 hours Product Include: 1x headphones, 1x charging cable,