Power supply: type-C or 5V input Bluetooth-compatible restore distortion: 0.15% Total harmonic distortion + : 95dB Audio DAC and ADC: 24 bit Chip module: with 24bit-192k digital audio analysis ability CPU: 240mhz risc-32 CPU processing core DSP: 400MHz digital signal processing core Bluetooth-compatible version: 5.0 compatible with v4.2/v4.2le/v2.1 + Bluetooth-compatible protocol: support Bluetooth-compatible 5.0 and A2DP, AVRCP, HFP, spp, Br host, Br device, and other Bluetooth protocols. Support and coding Transmit and receive delay: support actx-ll low delay, as low as 30ms Receiving mode: support fiber output, coaxial output, analog output (it can realize Bluetooth receiving to fiber digital signal) (it can receive the coaxial digital signal via Bluetooth-compatible ) (it can realize Bluetooth-compatible receiving to analog stereo signal) Transmission mode: support fiber input, coaxial input, analog input (it can realize the transmission of optical fiber to Bluetooth-compatible signal) (coaxial transmission to Bluetooth-compatible signal can be realized) (analog stereo transmission to Bluetooth-compatible signal can be realized) Adapt to any audio device to Bluetooth-compatible transmission Two boards can be connected to each other Can receive any Bluetooth-compatible signal It can transmit audio signal to any Bluetooth-compatible receiving device Colour:black Material:plastic Package Contents: 1 x Bluetooth audio transmitter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.