A great companion for any speaker, tour guide or teacher! This portable loudspeaker can be used as a voice amplifier as well as a speaker for your laptop or mobile devices. The powerful speaker will produce sound at 180db and can be used in rooms up to 2000 square meters Accessories in the box:- Amplifier- Instruction manual (in Chinese)- Microphone- Waistband belt (to secure around waist or hang on your shoulder)- USB charger cable- 2-flat-pin plug charger (please use an adapter for plug charger)- Audio cable Specifications:Battery: 1800mA lithium ionWorking time: 10 - 15 hoursWeight: 218gDimension: 9.8cm x 8.8cm x 4.5cm Collection options:1. COD at Admiralty MRT (Sat, 11am - 12noon)2. Registered postage at additional $3 GreatValueBuys.com - where smart shoppers save!