AMPLIFIER SIMULATORS Vox amPlug 2 BLUES Mini Headphone Amplifier. Blues: The authentic bluesy sound of a saturated tweed amp. With amPlug 2, the analog circuitry has been dramatically improved, and each model now offers three modes. Modes: Tremolo Off / 1/2. Effects: Chorus 1/2/3, Delay 1/2/3, Reverb 1/2/3. Connections: Headphone output, AUX in. Power: AAA x 2 batteries. Battery life: 11 hours (with alkaline batteries, FX on), 17 hours (with alkaline batteries, FX off), 4 hours (with zinc-carbon batteries, FX on), 9 hours (with zinc-carbon batteries, FX off). Dimensions: (W x D x H): 86 x80 x 31mm. Weight: 40g (without batteries). Accessories: 2 x alkaline batteries (for functional check)