Features: 1. STABLE AND STURDY: Wood grain appearance with sturdy shell, Bluetooth 5.0 dual 50W channels, stable connection, durable and attractive design 2. MULTIPLE DECODING: Supports U disk and small memory card playback, multiple format decoding (MP3, WAV, APE, FLAC), MP3 sampling rate from 8~48K, bit rate from 8~448Kbps, bit width is 16bits, channel is mono stereo; WAV sampling rate from 8~48K, format is WAV IMA, for Microsoft AD PCM, or WAV PCM, bit width is 16bits; FLAC sampling rate from 8~48K, bit width is 16bits; APE supports FAST or NORMAL encoding, bit width is 16bits 3. WIDE APPLICATION: The power amplifier can be connected to mobile phones, computers, tablets, notebooks, MP3 players, TVs and projectors with AV o (RCA) or 3.5mm headphone output jack. Compatible with various mainstream Bluetooth devices for wireless transmission 4. O INPUT: Supports 3.5mm stereo sound input, RCA stereo sound input, small memory card, U disk, USB o input (can be connected to computer, mobile phone, OTG, tablet OTG) 5. STABLE AND DURABLE: Power amplifier features a stable structure, excellent performance and long service life Item Type: Mini Bluetooth 5.0 Power Amplifier Feature Type: 2.0 Stereo Output Power: 50W + 50W Power Supply: DC 9V-24V Bluetooth Range: Approximately 12 meters (39.4 feet), line of sight Bluetooth Version: 5.0 Product Dimensions (L x W x H): Approximately 110 x 90 x 50mm / 4.33 x 3.54 x 1.97 inches o Input: 3.5mm stereo input, RCA stereo input, micro SD card, USB drive, USB o input (compatible with computer, mobile phone, OTG, tablet OTG) Package Includes: 1 x Mini Bluetooth 5.0 Power Amplifier, 1 x User Manual