Hign-concerned Chemical : NoneModel Number : Bluetooth-compatible 5.0 Audio Transmitter Receiver AdapterBrand Name : ALLOYSEED : Mainland ChinaCertification : noneModel: : BT-350Technology: : BT4.1 2.4GHzOperating range: : up to 10 m / 33 ft (no barrier)Interface: : 3.5mm stereo input jackMode: : support sleep mode, hands-free calling, A2DP stereoBuilt-in rechargeable battery: : 120mAhCharging status: : red LED lights up, extinguished when fullWorking time: : 8hSpecifications:Model: BT-350Technology: BT4.1 2.4GHzOperating range: up to 10 m / 33 ft (no barrier)Interface: 3.5mm stereo input jackMode: support sleep mode, hands-free calling, A2DP stereoBuilt-in rechargeable battery: 120mAhCharging status: red LED lights up, extinguished when fullWorking time: 8hPairing: press the key for 5 seconds until the red and blue LED lights alternately shine. After the link is successful, it turns blue and flashes slowly.Notes:Some device pairings require a pairing password: 0000. Replacing other devices requires re-pairing.Please allow 1-3mm differs due to manual measurement.Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding.1 X Bluetooth-compatible 5.0 Audio Transmitter Receiver Adapter1 X 3.5mm Double Head Audio Cable1 X Chinese and English Manual1. Support CSV/EXCEL dropshipping . We offer discounts for wholesale orders , If you need, please kindly contact with us. 2. Fulfill orders on a daily basis. We can use Paypal for payment. 3. Don't include any invoices, QR es, promition paper on the parcel. 4. We will handle your orders within 2-5 business days and handle thousands of orders every day. 5. We have sufficient stock of our products. 6. Any other questions, feel free to let us know.1. WORLDWIDE SHIPPING. (Except some countries and APO/FPO) 2. Orders processed timely after the payment verification. 3. We only ship to confirmed order addresses. Your order address MUST MATCH your Shipping address. 4.SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit time may vary, particularly during the holiday season. 5. If you have not received your order after 30 days from payment, please contact us. We will trace your order and get back to you asap. Our goal is customer satisfaction!1. We maintain high standards of excellence and strive for 100% customer satisfaction! 2. Feedback is very important. We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can perform up your satisfaction. 3. It is impossible to address issues if we do not know about them!