ZK-LT22:
1. Bluetooth version: 5.1
2. Bluetooth transmission distance: 10m
3. Audio input: Bluetooth + AUX + U disk + USB sound card
4. Audio output: 15W for left channel + 15W for right channel + 30W for subwoofer
5. Adaptable power supply: DC9-24V, 7A (not connectable to AC)
6. Speaker: left and right channel 10-30W, 4-8 ohms; subwoofer 10-30W, 4-8 ohms
7. Protection mechanism: over temperature, over current, short circuit, anti-static protection
8. Feature function: support Wuzhi Audio APP, modify Bluetooth name, password setting, beep volume adjustment, on/off beep, sleep aid song, firmware upgrade, etc. Pair box function, true wireless function allows two sets of speakers to be combined into a left and right channel pair box, with a stronger sense of spatial positioning
9. U-disk support for more HD lossless formats
Bluetooth decoding chip, better resolution, support remote firmware update, support TWS function
10. Separate volume adjustment for subwoofer and stereo output
11. Total volume is mechanical potentiometer, volume position is clear at a glance, multi-button function is abundant
12. Dimensions: 75x70x20cm
13. Weight: 77g

ZK-LT23:
1. Bluetooth version: 5.1
2. Bluetooth transmission distance: 10m
3. Audio input: Bluetooth + AUX + U disk + USB sound card
4. Audio output: 50W for left channel + 50W for right channel + 100W for subwoofer
5. Adaptable power supply: DC9-24V, 7A (not connectable to AC)
6. Speaker: left and right channel 10-50W, 4-8 ohms; subwoofer 20-50W, 4-8 ohms
7. Protection mechanism: over temperature, over current, short circuit, anti-static protection
8. Feature function: support Wuzhi Audio APP, modify Bluetooth name, password setting, beep volume adjustment, on/off beep, sleep aid song, firmware upgrade, etc. Pair box function, true wireless function allows two sets of speakers to be combined into a left and right channel pair box, with a stronger sense of spatial positioning
9. U-disk support for more HD lossless formats
Bluetooth decoding chip, better resolution, support remote firmware update, support TWS function
10. Separate volume adjustment for subwoofer and stereo output
11. Total volume is mechanical potentiometer, volume position is clear at a glance, multi-button function is rich
12. Dimensions: 75x70x20cm
13. Weight: 78g