brand new and high qualityOOTDTYFeatures: The appearance of the product is exquisite; Adopt CSR8675 high-end chip design;RX and can be switched with power; SPDIF, I2S input/output , can be switched freelyWith Bypa transfer function, with ;With two antennas, Bluetooth-compatible operating distance>80M, strong stability;High-fidelity lole sound quality, CD-level sound quality Ultra-low delay sound output, new ANC noise reduction and for echo cancellation technology. Support apt-X high-definition lole decoding, and apt-X LL, apt-X, SBC. Built-in 1000MA battery, long battery life.There will be a low battery reminder if the battery is below 20%. The product will automatically enter the sleep power saving after 6 minutes in the and without connection, and it has its own battery for protection IC, which is safe and reliable while charging.Support dual current Support Dual stream (TX mode) transmiion can be to two Bluetooth-compatible devices Receiving (RX) can be to two devices at the same for time, any two of the mobile phones tablet notebook device, the music can be paused and played by the button during playbackAutomatically back in receiving and transmitting , and have memory function for CONNECTED products The product connection is simple, without any cumbersome driving and downloading APP;Specifications:Product name: 3-in-1 Bluetooth-compatible transmitter receiverInput/output : 3.5mm AUX , opticalBluetooth-compatible : AVRCP, A2DPBluetooth-compatible chip: CSR8670Bluetooth-compatible version: Bluetooth-compatible V5.0Signal to noise ratio: >90dBBattery capacity: 3.7V/300mAhTransmiion distance: 10 metersFrequency : 2.402GHz- 2.480GHzWorking time: about 26 hoursVoice frequency performance: APTXCharging method: Micro USB 5V/0.5ACharging current: 200-300mAMaterial: ABSSize: app.12.8x8x2.5cm/5.04x3.15x0.98inColor: Black + GrayQuantity: 1pcNote:Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package Includes:3 in 1 Bluetooth-compatible adapter x1Lotus line x1Optical fiber x1USB charging cable x13.5mm cable x13 in 1 Bluetooth-compatible adapter x1Manual x1