waist pack with speaker, with waist pack support computer,ipod,mp3 it's very nice as a gift big area for logo waist pack with speakerRated Impedance 4Ω±0.5ΩOutput Power 2W(1KHZ,THD10%)Supply Voltage 3V(3——4.5V, 2*AA) Circuit Current ≤300mAFrequency Response (150HZ——20KHZ),Supply Voltage Rejection ≥48dBROSH available Fashion design portable waist pack speaker ZU082