Specification AudioOutputMode : Stereo AudioOutputType : Speaker Brand : NATEFEMIN BulletPoint1 : The appearance of the product is exquisite; BulletPoint2 : Adopt CSR high-end chip design; BulletPoint3 : One-key switch between RX and TX modes; BulletPoint4 : RCA, I2S audio input/output interface, can be switched freely BulletPoint5 : Two antennas, Bluetooth operating distance more than 80M, strong stability; Color : default CompatibleDevices : Laptop CompatibleDevices1 : Speaker CompatibleDevices2 : Smartphone ConnectivityTechnology : Bluetooth ConnectivityTechnology1 : Bluetooth ConnectivityTechnology2 : Auxiliary ConnectivityTechnology3 : NFC ConnectorType : 3.5mm Jack ConnectorType1 : Auxiliary ConnectorType2 : RCA ControllerType : App Control ControllerType1 : Android ControllerType2 : iOS FinishType : Abs ItemName : 2 In1 80M Range Bluetooth 5.0 Receiver Transmitter CSR Aptx Audio Adapter 3.MM Audio TX RX RCA USB Wireless Dongle for TV PC Accessory ItemPackageDimensions_Height : 2 centimeters ItemPackageDimensions_Length : 2 centimeters ItemPackageDimensions_Width : 2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : wireless-audio-system-adapters Manufacturer : NATEFEMIN Material1 : abs Material2 : Acrylonitrile Butadiene Styrene ModelName : ASHATAhdkgxripgc ModelNumber : ASHATAhdkgxripgc NumberOfItems : 1 NumberOfPorts : 2 PartNumber : NUSA254300000 ProductDescription : Features: The appearance of the product is exquisite; Adopt CSR high-end chip design; One-key switch between RX and TX modes; RCA, I2S audio input/output interface, can be switched freely Specifications: Bluetooth version: Bluetooth V5.0 Support protocol: RX: A2DP AVRCP TX: A2DP Working frequency band: 2.402GHz -2.480GHz Power level: power level 1, 2 (Class I II) Distortion: Less than 0.1% Support Dual stream Support Dual stream (TX mode): support (a transmitter is connected to two Bluetooth speakers or earphones at the same time using a CODEC, up to APTX LL) Support Multipoint (RX mode): support (connect two mobile phones) Codec method CODEC: TX: apt-X LL, apt-X, SBC, FS; RX: apt-X LL, apt-X, SBC, AAC, FS; Note for APTX use: Priority support for apt-X LL CODEC in single connection (the connected device must also support apt-X LL) Built-in battery: 500MAH Charging current: about 350MA Charging time: about 2.5 hours Life time: RX is greater than 10H, TX averages about 8H Bluetooth distance: ﹥80M (unobstructed) Charging method: Micro USB 5V/0.5A Input/output connection mode: RCA interface, I2S AUX interface, support RCA, AUX dual simultaneous output Compatible: All smartphone system mobile phone and PAD, and Bluetooth speakers or earphones supporting A2DP protocol to connect and use