M23 Little Devil Pattern Intelligent Noise Reduction Touch Bluetooth Earphone with Three-screen Battery Display & Mirror Charging Box, Support HD Call & Siri 1. Bluetooth 5.1 chip, efficient transmission, stable and continuous connection, no delay during gaming 2. Intelligent noise reduction, high-definition call 3. 8mm moving coil unit, high-definition sound quality decoding 4. Smart touch, simple operation, support for calls, music, wake up voice assistant and other functions 5. Mirror charging box, can be used as a vanity mirror; built-in large-capacity lithium battery, long-lasting battery life 6. The middle LED digital display shows the power of the charging box, and the left and right LED marquees respectively display the battery power of the left and right earphones. 7. IPX6 waterproof Product parameters: 1. Bluetooth version: V5.1 2. Wireless propagation distance: about 10-20m 3. Drive unit size: 8mm 4. The charging box provides headset charging times: about 40 times 5. Cumulative talk time: about 120 hours 6. Cumulative playing time: about 180 hours