KASTWAVE Bluetooth Transmitter & Receiver - Bluetooth 5.2 3.5mm AUX Built-in 250mAh Li-Polymer battery

2-in-1 Bluetooth 5.2 Transmitter & Receiver, APTX Low Latency Wireless Audio Adapter with Volume Control, Pairs 2 Devices Simultaneously

Recommended Uses:

Transmitter - Bluetooth-enable your TV, PC, TV Box, Projector, Airplane Entertainment, MP3/MP4, CD players, Treadmill, etc. Stream audio to any Bluetooth headphones/speakers.

Receiver - Bluetooth-enable a wired speaker, soundbar, home theater etc. Receive audio wirelessly from any Bluetooth audio device e.g. PC, mobile phone, etc.

Uses APTX low latency to eliminate lip sync delay.

Supports streaming audio to two headphones at the same time.

Compatible with devices with AUX audio output.

Built-in microphone for hands-free calling in RX mode

Built-in 250mAh battery for up to 15 hours long time use.

Offers up to 33 feet Bluetooth connection distance in an open space.

Play while charging

Doesn’t work / not recommended for:

Many headphones/speakers are primarily for music, not watching TV and do not support APTX-LL.

LE507 will connect with these devices using another codec (e.g. SBC, APTX), resulting in a 70-200ms audio delay which may be noticeable by some users.

Phone calls only be supported in RX mode, NOT in TX mode

Not compatible with ANY RCA output on the back of AV Receiver / amplifier.

Works as EITHER a transmitter or receiver - NOT both simultaneously.

When using the transmitter the TV internal speakers might not work or become muted. This is TV dependent..

Volume +/- will not work if your device does not support Audio/Video Remote Control Profile.

Doesn't support to pair with car Bluetooth system or any other Bluetooth sound system that requires to enter a certain PIN CODE for pairing, since LE507 doesn't have the keypad for you to enter the pin code.

Not recommend for streaming live music (while playing guitar, keyboard, electronic drums, karaoke etc.)

Operation range can be affected by Wi-Fi routers, Wireless TV adapters, physical obstructions like walls, metal obstacles etc. and also depends on receiving device.