1、【Seamless BT Support】Can be connected to various BT playback devices, get rid of the shackles of wires, and even BT can output good sound quality. It provides seamless wireless BT connectivity with hi-res codec support such as LDAC, AptX HD, AptX LL, and many more. 2、【Premium Audio Chipset】Using TI TPA3116 amplifier chip, excellent sound quality, the maximum output power can reach 50W per channel, easy to drive bookshelf speaker. It also adopts the high-performance ES9018K2M DAC chip and high-fidelity operational amplifier chip MAX97220, which can ensure high S/N and very low distortion with excellent performance parameters. This chipset eliminates noise interference and provides the users with a powerful high-resolution output. 3、【1.3 Inch OLED Display】Using OLED display, the BT connection status/coding format sampling rate/song name and other information can be displayed intuitively so that you can know the working status at any time. 4、【Compact Headphone Amplifier】With strong output power, it can easily drive any kind of headphones. Moreover, designed with size(19.6*12.1*4.8cm), it’s easy to carry everywhere for a real-time HiFi music experience. 5、【Aluminum shell Processed by CNC Technology】The shell is made of aluminum alloy and uses a block of aluminum processed by CNC technology, which has excellent shielding characteristics. Overview: DA-100 is a BT & digital power amplifier with a headphone output and speaker output. The BT module uses a  CSR8675 chip, and supports LDAC, aptX HD, and other HD BT formats; the DAC module uses a high-performance ES9018K2M chip, with extremely low noise and distortion; the power amplifier circuit adopts a high-fidelity high-power digital power chip, which can easily drive large-size speakers; the amp circuit adopts independent high-fidelity amp chip, the output can reach 2Vrms, which can easily drive all kinds of headphones. Features: 【Seamless BT Support】Can be connected to various BT playback devices, get rid of the shackles of wires, and even BT can output good sound quality. It provides seamless wireless BT connectivity with hi-res codec support such as LDAC, AptX HD, AptX LL, and many more. 【Premium Audio Chipset】Using TI TPA3116 amplifier chip, excellent sound quality, the maximum output power can reach 50W per channel, easy to drive bookshelf speaker. It also adopts the high-performance ES9018K2M DAC chip and high-fidelity operational amplifier chip MAX97220, which can ensure high S/N and very low distortion with excellent performance parameters. This chipset eliminates noise interference and provides the users with a powerful high-resolution output. 【1.3 Inch OLED Display】Using OLED display, the BT connection status/coding format sampling rate/song name and other information can be displayed intuitively so that you can know the working status at any time. 【Compact Headphone Amplifier】With strong output power, it can easily drive any kind of headphones. Moreover, designed with size(19.6*12.1*4.8cm), it’s easy to carry everywhere for a real-time HiFi music experience. 【Aluminum shell Processed by CNC Technology】The shell is made of aluminum alloy and uses a block of aluminum processed by CNC technology, which has excellent shielding characteristics. Specifications: Dispaly: 1.3inch OLED Power Supply: DC24V BT Version: 5.0 BT Chip: CSR8675 Communication Range: about 10 meters USB Input: plug and play, up to 16bit/48khz Output Power of the amplifier: 2*50W (1KHz, 4Ω load) Output Power of headphone amplifier: 2*125mW (1KHz, 32Ω load) Frequency Response: 20Hz-20KHz THD+N of the amplifier: <0.1% THD+N of headphone amplifier: 0.05% SNR of the amplifier: 102dB SNR of headphone amplifier: 110dB Product Size: 19*12*5cm / 7.48*4.72*1.97in Product Weight: 687g / 24.23oz Package List: 24.5*17*12cm / 9.65*6.69*4.72in Package Weight: 1311g / 46.24oz Package List: 1 * DAC Amplifier 1 * BT Antenna 1 * AC Adapter 1 * 6.35 to 3.5 Connector 1 * User Manual 24.5*17*12cm / 9.65*6.69*4.72in Package Weight: 1311g / 46.24oz Package List: 1 * DAC Amplifier 1 * BT Antenna 1 * AC Adapter 1 * 6.35 to 3.5 Connector 1 * User Manual