Features Multi-function Bluetooth transmitter & receiver In TX Mode: Transfer audio from a TV, CD player, iPod, or laptop to a Bluetooth headset or stereo (supports connection to two devices simultaneously). In RX Mode: Stream audio from a mobile phone or other Bluetooth source to wired speakers or an audio system for high-fidelity listening. Bypass Mode: Direct wired connection between TV and speaker—no need to plug/unplug cables; easily switch between modes. Ultra-Long Range (262 ft / 80 m) Utilizing Bluetooth 5.0 technology and dual-antenna design, this adapter delivers up to 262 ft (80 m) line-of-sight range in open air, and up to 80–110 ft (25–35 m) indoors for stable connectivity throughout large homes. Note: Operating range may be affected by Wi-Fi routers, wireless TV adapters, and the capabilities of connected devices. Low-Latency Audio Experience Supports low-latency transmission, minimizing audio-video sync delay. Enables simultaneous streaming to two Bluetooth headsets—ideal for watching TV or movies. Note: Low-latency performance requires compatible receiving devices. USB Rechargeable Built-in 500 mAh battery—fully charges in approximately 2.5 hours. Provides over 8 hours of use in TX mode and over 10 hours in RX mode. Can be used while charging. Note: Automatically enters power-saving mode after 6 minutes without an active Bluetooth connection. Easy Setup & Wide Compatibility Remembers settings after power loss. Supports standard RCA and 3.5 mm stereo audio outputs—compatible with 99% of analog audio devices. Note: Does not support digital optical input. For optical compatibility, consider models BT-B21 or BT-B22. Setup is simple: connect to power and your audio system, pair with a smartphone or tablet, and start streaming. Specifications Type: Bluetooth 5.0 Audio Adapter Color: Black Material: ABS/PC Dimensions: 11 × 9 × 2.5 cm Bluetooth Chip: CSR Bluetooth Version: 5.0 Supported Profiles: RX – A2DP, AVRCP; TX – A2DP Transmission Range: >80 m (open area) Battery Capacity: 500 mAh Operating Time: RX >10 hrs; TX >8 hrs Charging Time: ~2.5 hrs Charging Voltage: DC 5 V Audio Output: RCA, 3.5 mm stereo Supported Codecs: TX: aptX LL, aptX, SBC, FastStream RX: aptX LL, aptX, SBC, AAC, FastStream Note: – Slight dimensional variations may occur due to manual measurement. – Actual product color may vary slightly from images due to lighting and screen settings.