2.4G Wireless Audio Transmitter TV Headset Wireless Transmitter Without Delay Features: 1. Using 2.4G technology high-definition sound quality without sensory delay transmission 2. The transmitter supports optical fiber and coaxial digital audio inputs. 3. Support AC-3/DTS/PCM signals 4. Receiver built-in lithium battery 5. Receiver low power consumption, 7 hours standby battery life 6. Transmitter external antenna, transmission effect is better 7. Receiver can drive headphones 8.Receiver supports volume adjustment 9. Receiver with lapel clip function, easy to carry Specifications: Maximum transmission distance: 50m Receiver built-in battery:Lithium polymer battery battery capacity:250mA/H Standby battery life:about 7 hours Charging:5V/200mA RF frequency:2400Mhz Transmit power:14DB SNR:67DB Frequency Range:20HZ---14.5KHZ Sampling Rate:44.1Khz~96KHZ/24bit Support audio format:AC-3、DTS、PCM Output the highest level:1.75Vp-p Working temperature:-40~+85℃ Storage ambient temperature:-60~+120℃ Working environment humidity:-10~90%RH(non-condensing) Storage environment humidity:-5~95%RH(non-condensing） Case material:Plastic Color:Black Package included: 1*Receiver 1*Transmitter 1*Manual 2*USB charging cable (Others not included) Note: Please allow 0-1cm error due to manual measurement. please 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. Thanks!