Bluetooth Audio Splitter Transmitter Receiver 2 in 1 Wireless 3.5MM AUX Adapter For 2pcs Headphones Listening Together Description: Bluetooth version: Bluetooth V5.2 Supported protocols: RX: A2DP AVRCP TX: A2DP Working frequency band: 2.402GHz -2.480GHz Signal-to-noise ratio: ≥99.3dB Support Dual stream (TX mode): support one-to-two connections Support Multipoint (RX mode): Support (connect two mobile phones) CODEC "TX: aptX Adaptive/aptX HD/aptX LL/aptX/SBC RX: aptX Adaptive/aptX HD/aptX/AAC/SBC Built-in battery: 250MAH Charging time: about 2 hours Battery life: RX﹥20H TX﹥12H Bluetooth distance: ﹥10M (open space) Charging method: USB TYPE-C 5V/0.5A Input/output connection method: 3.5MM audio interface Product size: 48*48*12MM Specifications: 1. Bluetooth Version: V5.2 2. Supporting Agreement: A2DP AVRCP 3. Support Dual Stream (TX mode): Support (One Transmitter Connects Two Bluetooth Speakers Or Headphones At The Same Time) 4. Support Bluetooth Headset, Bluetooth Audio, Bluetooth Receiver And Other Equipment 5. Support Multi-point Connection (RX mode): Support Connecting Two Mobile Phones 6.Support handsfree(RX Mode) 7. Battery Type:250mAh Lithium Ion Polymer Battery 8.Code:RX:aptX Adaptive/aptX HD/aptX/AAC/SBC TX:aptX Adaptive/aptX HD/aptX LL/aptX/SBC Package Included: 1*Bluetooth adapter 1*3.5MM audio cable 1*Type-C power cable 1*Instruction