Bids are Invited For Portable PA Neck Band system- Specifications: Power Output- 12W Max., Speaker Impedance-4Ω, Input Channel- Mic-1: 1.0mV, Line-250mV, MP3 Playback: USB & TF Card (16 GB pendrive), Frequency Response: 80-12,000Hz, AC Adapter: AC: 100-240V, 50/60HZ; DC: 5V, 750mA, Built-in Rechargeable Lithium-Ion battery: 3.7V, 200mAh, Headband Microphone Element: Condenser, Cardioid, Dimensions: W-86 x H-98 x D44 mm, Weight (with built-in rechargeable battery): 0.34 kg approx. , Accessories: Headband microphone, AC power adapter (for recharging lithium-Ion battery), Neck Strap, Charging Indicator LED: Yes or more. (Ahuja or similar) in Andhra Pradesh