TRENDING SPEAKER!! The Niles Spark Speaker has such a large ad space area (both front and back) for full brand exposure and high-value design. The long oval shape is trendy and sits beautifully on any desktop or space. Bring your brand to life in homes and offices across the country. 3-day and 1-day QuickShip Larger imprint area 4.7x1.8 inches Premium speaker promo Bluetooth Standard brown box, charging cables and user's manual Recommended font size minimum 24 pt Recommended large wide logo 2 sided imprint We recommend logos that are wide and bold with minimal small details for the highest impact on the speaker's surface that is textured. SPECIFICATIONS Bluetooth standard V4.1 Transmission distance 10 meters Output power 13W Frequency effect 180Hz.20KHz Speaker specification 40mm4 3w Input current DC 5V Built-in lithium battery 3.7400mAh Built-in microphone 40DB 30DB PACKAGING ACCESSORIES Speaker x1 3.5mm audio line x1 USB charge line x1 Instructions book x1