B36 is an OLED Bluetooth o receiver/transmitter. The receiving state (RX) and the transmitting state (TX) can be switched through the button switch.With AUX o interface, it is compatible and versatile.B36 supports one with two functions (two stereo Bluetooth speakers or stereo Bluetooth headsets can be connected at the same time in TX state, two speakers/headphones can emit sound at the same time; two phones can be connected at the same time in RX state)Use CSR Bluetooth chip as the core data processing.Transmitting power: Cl II, open area Greater than 10M range of use (the actual range depends on the equipment connected to it)Frequency range: Bluetooth standard, 2.402~2.480GHzThe main chip data storage uses external 16M FLASH memorySupport A2DP AVRCP protocolIt can be connected with Bluetooth speakers or earphones that support A2DP protocol to form a wireless o transmission network for TVIt can also be connected to a mobile phone/computer to play music. ■ Support SBC, apt-X, apt-X LL, AAC (RX) and other CODECSupported Bluetooth speaker or headset pairing security keys are: 0000, 1111, 1234, 8888.Use time in receiving state Greater than 10 hours, use time in transmitting state Greater than 10 hoursCharging time is about 3 hours, charging input requirements: 5V DC ≥500MA500mAh Li-ion polymer rechargeable batteryWorking temperature: -10-55 CelsiusColour:BlackMaterial:ABSPackage Contents:1 x Bluetooth 5.0 o adapterOnly the above package content, other products are not included.Note: Light shooting 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.