Wireless Bluetooth 5.0 Receiver RCA aptX LL NFC 3.5mm Jack Aux USB Audio Adapter The product is shipped based on the color or size of the main image of the product page. 100% brand new and high quality Product parameters: Name: NFC Bluetooth receiver Frequency response range: 10Hz-20kHz SNR: > 110dB Distortion + noise: < 0.02% Bluetooth version: 5.0 Bluetooth Name: bls-b10 Interface: stereo simulation/ Aux3.5mm output impedance: 75 ohm Decoding chip: Bluetooth 5.0 effective distance: 15m performance: HiFilevel Support: A2DP / AVRCP Package included: 1 X Bluetooth Receiver Note: Please allow 2-3 % difference due to manual measurement. Besides different computers display colors differently, the color of the actual item may vary slightly from the below images, thanks for your understanding(1 inch = 2.54 cm)