1. Input: 5V/3A, 9V/2.5A
2. Battery capacity: 4150mAh
3. Supported systems: Android 4.4 and iOS 9.0 or above
4. Wi-Fi: Wi-Fi IEEE 802.11 a/b/g/n 2.4GHz/5GHz dual frequency
5. Bluetooth version: BT5.3
6. Rated power: 2x7.5W
7. Acoustic unit: 1.75-inch full-range speaker x2/passive passive radiator x2
8. Microphone: Supports remote on-site voice wake-up of Xiaoai classmates
9. Support Type-C data cable for wired connection to computer
10. Support LHDC music playback
Packing list: host x1, Type-C to Type-C adapter x1, charger x1, user manual x1