Bluetooth version:Bluetooth 6.0; Audio codec: AAC LC3; Mode:Bluetooth audio receiver,Bluetooth broadcast receiver,Bluetooth broadcast transmitter; Battery:550mAh; Play time:Bluetooth audio receiver:6h Bluetooth broadcast receiver:20h; Bluetooth broadcast transmitter:20h; Distance:Under Bluetooth audio receiver:15m(barrier-free) Under Bluetooth broadcast mode:100m(barrier-free) Audio input:3.5mm aux/Mic/Bluetooth Audio Output:3.5mm aux Covering Various Use Cases 1) Government Affairs: Government and Enterprise Receptions: Professional-grade voice transmission, ensuring zero interruptions in important meetings; 2) Business: Auto Show Conferences: Anti-interference sound field technology ensures clear communication in noisy environments; Exquisite product design; High-end chip design, utilizing the latest Bluetooth LE AUDIO technology; Traditional Bluetooth BT + Broadcast Audio RX/TX functions; Multi-audio inputs: AUX, MIC, and BT; Supports , AAC, LC3, and Broadcast Audio and other audio transmission systems; One-touch switching between BIS, , and BT modes adapts to various scenarios; Equipped with ENC microphone noise reduction, an ultra-long range of 100 meters, and in-ear monitoring; Built-in polymer lithium battery for long-lasting battery life; Carrying case design for portability and convenience; Easy operation, LED multi-status indicators for clear identification of operating status; Simple connection, no drivers or app downloads required; Color: Black Material: ABS Package Contents: 1 * wireless audio transceiver 1 * data cable 1 * 3.5mm audio cable 1 * 3.5 to 6.5 adapter 1 * wired headset 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.