Check the listing for details. Retekess TR623 Portable Voice Amplifier Mic Headset Speaker Recording Training. Condition: New. Listed at 29.99 USD. Main Feature: This radio is small, light and thin, easy to carry Two-key quick save radio station to meet the use of special environment Powered by 2 x AAA batteries FM frequency 50-108MHz, wide frequency range Only external earphones can be used for listening without disturbing others. Semi-automatic and manual two collection methods, simple and convenient operation Stereo/mono switch optional TR623 Portable Voice Amplifier Microphone Speaker Recording for Meeting Teaching Hot Spot: Round appearance, exquisite details Good radio effect, good amplified sound quality Loudspeaker howling is well controlled Support microphone input volume adjustment Support TF card/USB/AUX line MP3 playback Features: HIGH POWER LARGE VOLUME LONG PLAY FM RADIO MIC AMPLIFIER MP3 / WMA format dual decoding playback USB/TF Card Socket and AUX In One-click recording Description: Output power ＜10W Charging voltage DC5V 500mA Frequency Range FM:87.5-108MHz TF /USB supports up to 32G Antenna Telescopic antenna Dimensions 130x92x40mm Antenna length 185mm Weight About 291g Speaker 2Ω 5W battery capacity 1800mAh Standard Accessories: 1 x TR623 Amplifier Digital Player 1 x Headset microphone 1 x strap 1 x Back buckle 1 x USB power cable 1 x User Manual About Us