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 16 bits, channel mono/stereo; WAV sampling rate from 8–48K, format WAV IMA, Microsoft AD PCM or WAV PCM, bit width 16 bits; FLAC sampling rate from 8–48K, bit width 16 bits; APE supports FAST or NORMAL encoding, bit width 16 bits 3. WIDE APPLICATION: Power amplifier can be connected to mobile phones, computers, tablets, notebooks, MP3 players, TVs, and projectors with AV audio (RCA) or 3.5mm headphone output. Compatible with various mainstream Bluetooth devices for wireless transmission 4. AUDIO INPUT: Supports 3.5mm stereo sound input, RCA stereo sound input, small memory card, U disk, and USB audio 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 50 mm (4.33 x 3.54 x 1.97 inches) Audio Input: 3.5mm stereo input, RCA stereo input, small memory card, U disk, USB audio input (compatible with computer, mobile phone, OTG, tablet OTG) Package Includes: 1 x Mini Bluetooth 5.0 Power Amplifier 1 x User Manual