Note: 
Standard Edition: Pure headphone amplifier, which can only be input via the RCA line. 
Bluetooth Version: Add Bluetooth function based on the standard version, you can connect your phone as an input device via Bluetooth 4.2.

Features: 
* The Little Dot MKIII+ is a hybrid amp that combines a tube with a transistor. 

* The Little Dot MKIII+ preamp tube uses a pair of transistors 6C4. The transistor adopts PNP/NPN fully discrete, fully symmetrical, pure class A amp circuit. The bass is mellow and the middle and high notes are sweet and sweet. 

* The Little Dot MKIII+ has a built-in Bluetooth V4.2 unlimited input module that can be directly connected to the mobile phone for easy access. 

* The chassis uses a very sophisticated secondary oxidation process, and the tubes have gold-plated shields and retainers. 

* 1 year warranty.

Parameter: 

*Input terminal:    RCA x2 
                      Bluetooth 4.2 wireless input (Bluetooth version only) 

*Output terminal: 6.35mmx1 (when used as a headphone amplifier) 
                                 RCAx2 (when used as a preamp) 

*Input impedance: 10 KΩ 
*Frequency response: 5Hz - 100KHz (-1dB) 
*Distortion: 0.001% (output: 2V RMS 1000Hz) 
*Signal to noise ratio: 95dB 
*Output Power: 0.8W @ 300Ω 
                              1.8W @120Ω 
                               2.5W @ 32Ω 
*Adaptation headphone impedance: 32Ω - 600Ω 
*Gain: Gain = HIGH: 9 
             Gain = LOW: 4.5 
*Power consumption: 25 VA 
*Dimensions: 245 (deep) *165 (width) *120 (height) mm 
*Weight: 3 Kg