Amplifier Type: Class D, Output Type: 2-Channel (Stereo) with Stereo Headphones, Max Output Power x Channels @ Load: 2.2W x 2 @ 4 Ohm; 177mW x 2 @ 16 Ohm, Voltage - Supply: 2.4V ~ 5.5V, Board Type: Fully Populated, Utilized IC / Part: LM49270,
Amplifier Type: Class D, Output Type: 2-Channel (Stereo) with Stereo Headphones, Max Output Power x Channels @ Load: 2.5W x 2 @ 4 Ohm, Voltage - Supply: 2.7V ~ 5.5V, Board Type: Fully Populated, Utilized IC / Part: LM49450,
Amplifier Type: Class AB, Output Type: 2-Channel (Stereo) with Stereo Headphones, Max Output Power x Channels @ Load: 3W x 2 @ 3 Ohm, Voltage - Supply: 4V ~ 5.5V, Board Type: Fully Populated, Utilized IC / Part: TPA6011A4,
Amplifier Type: Class AB, Output Type: 2-Channel (Stereo) with Stereo Headphones, Max Output Power x Channels @ Load: 2W x 2 @ 4 Ohm, Voltage - Supply: 4V ~ 5.5V, Board Type: Fully Populated, Utilized IC / Part: TPA6021A4,