What are Specifications:
-Bluetooth Version: V5.0, Class II
-Battery: 300mAH rechargeable lithium battery
-Frequency: 2.40GHz to 2.480GHz
-Bluetooth Profile: RX: A2DP AVRCP, TX: A2DP
-Transmission Range: Within 10M or 32.81ft
-Size: 2.5x 2.5 x 0.71in or 64 x 64 x 18mm
-Working Temperature: -10 to 55 degrees C
-Operating Time: 7 to 8 hours
-Charging Time: 2 hours
-Power Supply Port: Micro USB
-Power Input: DC 5V
-Colour: Black
-Type: Adapter

What is Description:
-Featured Bluetooth V5.0: Advanced CSR 5.0 chipset combining A2DP comes with stable connectivity and remarkable signal stability. Ideal to be used for your wired Headphones, Speakers, home sound system, car stereo and portable non-bluetooth device via ia the 3.5 mm aux or RCA audio connector or optical cable.
-Real-Time Audio Transmission: Bluetooth transceiver adopt the Low Latency Technology in both TX and RX modes, which can reduce audio lag under 40ms and let you enjoy high-quality audio in sync with the picture Your Bluetooth headphones or speaker must also support aptX LL, aptX as well.
-Dual Stream: Pair with two Bluetooth headphones or two Bluetooth speakers and both enjoy ultra-fast audio streaming. Non-stop and clear HiFi music streaming creates enjoyable listening experience.
-Optical, RCA, 3.5mm: Apart from 3.5mm Aux, RCA connection, the item also supports optical cable TOSLINK input, output. With provided optical cable, you can enjoy high-quality digital sound through multiple audio outputs, such as wired stereo, speakers, or headphones.
-Auto-Turn Off: In RX or TX mode, automatically power off if there is no devices to be connected within 10 minutes.

What in the Box:
-1 x Bluetooth Adapter
-1 x Digital Optical Toslink Audio Cable
-1 x USB Charging Cable
-1 x 3.5mm Jack to 2 RCA Plug Cables
-1 x 3.5mm Audio Cable
-1 x User Manual

Notes:
-The colours may vary slightly depending on different monitor displays.
-Please allow for minor discrepancies due to manual measurement.