waistband amplifier speaker with USB SD/MMC card(K

K-8300 is the Waistband amplifier with USB SD/MMC CARD.The Originate Digital Multi-Media Player . Microphone, speaker, karaoke, recharger in the multi-function digital amplifer.Broadcast MP3 audio file in SD/MMC Card and usb directly. Support MP3,IPOD, note book , mobile, PSP and the audio sourcing equipment etc. I. Character : * Patented design, streamline appearance , ergonomic. * The originate Digital Multi-Media player, Microphone, speaker, Karaoke, recharger in the multi-function digital amplifier. * Use digital technology and frequency shift technology . * Multi-using accoustic theory and technology of digital frequency shift , so making more super clear quality and screaming inhibitory ability. * By Nd-Fe-B magnetic trumpet, instant response quickly, noise reduction degree is higher * Output power can reach 10W, clear sound ,fully meet the 50-1000 square meters space and outdoor use * Independent power switch and the volume control , it is more convenient to operate, and thoroughly solved traditional product murmurs, etc. * Large capacity nimh high cyclelithium electron battery using high-tech explosion materials, notonly safe , and environmental protection , use more assured , charging circuit can reach 500 times more. * Using intelligent power management system, full automatic monitoring charging power, not only can effectivrly protect the rechargeable battery long life,but also higher efficiency. II. Appliance : Large store sales promotion,Teaching , Speech, Guide, exercise, promotion, music, personal karaoke etc... III. Specs : * Frequency : 80Hz- 12KHz * Output power : 10W * Speaker impedance : 6Ω * Broadcast MP3 Audio file in SD/MMC Card and USB directly * Support MP3,IPOD,Note book, mobile, PSP and the audio sourcing equipment etc. *Battery: 7.4V / 1000mA rechargeable lithium battery * Recharge time : 3-4 hours * Charging power adapter : DC 10.6V/ 350mA * One cycle battery working time : 8- 12hours * Host weight : 430g 9 (contain lithium battery) * Size : 210mm* 130mm* 60mm IV. Standard Features : * K-8300 multi-function amplifier 1pc * YM-230 head-set microphone 1pc * Charging power addapter 1pc * High strong elastic belt1set * Portable protection glove puppetry1pc * 3.5mm jack audio cables 1pc