CLEAR AND LOUD SOUND: Your voice will definitely be heard in every corner with our professional portable ! The sound is perfectly clear, without background noise, and covers 10000sq. ft / 1000sqm, so you can make your voice be heard by anyone! PORTABLE AND : Our portable audio system has a portable design, as it is super , with a user-friendly shape. It is equipped with a back clip to fix the device at your belt or pocket, or you can hang it around your waist with the help of the waistband belt included. LONG BATTERY AUTONOMY: You can enjoy the functionality of our multipurpose for many hours as it is equipped with a powerful 2000mah rechargeable lithium battery. It can resist up to 8 hours in use and it takes only 3-5 hours to fully charge, using a USB adapter and cable. VERSATILE AND PRACTICAL: Powerful, portable, and super easy to use, this amplifier speaker system is a must-have! It can be used for a wide range of purposes, to make your voice heard at meetings, or when teaching in a large room, for big outdoor events, such as weddings, or tourist guides. size: about 108 x 76 x 37mm Material: ABS colour: White Package Contents: 1 x bluetooth 1 x USB data cable 1 x wired headset 1 x wireless headset 1 x belt Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.