Direct H3 modèle privé 5.1TWS Bluetooth avec double microphone ENC haute définition réduction du bruit d'appel véritable sans fil

one Bluetooth specification bluetooth profile Bluetooth 5.0+EDR two Operating frequency range frequency range ISM2.402GHz to 2.480GHz three Hands free Bluetooth profile Bluetooth protocol A2DP, AVRCP, HFP, HSP four Modulation method modulation mode GFSK, Wu/4DQPSK, 8DPSK five Output Power Bluetooth transmission power Class 2 six Bluetooth chip brand Bluetooth chip brand Jerry 6976D seven Wireless connection range Bluetooth transmission distance 10m (open and unobstructed) eight Charging time for Bluetooth charging About1H nine Talk time Bluetooth call time About4-5H ten Music playing time Bluetooth music playback time About 4-5H eleven Standby time Bluetooth About200H twelve Charging voltage 5V thirteen Battery capacity 30mAh fourteen Speaker horn Specification Φ 10mm/32 Ω Sensitivity 104 ± 3dB (At 1000Hz) Frequency response range Frequency Response 20 Hz -20 KHz Maximum power power 5mw fifteen Mic microphone Specifications MEMS (27 * 18) Full Direction, Anti Noise Omnidirectional, noise resistant Sensitivity -42dB ± 3dB Payment and delivery methods 1. Payment method: (1) 30% deposit in advance, final payment to be made after photo confirmation before shipment, and can be shipped after payment (Targeted customers); (2) Non customer, after payment, the company will arrange for shipment and provide a tracking number for timely inspection (For large quantities, payment can be made according to Method 1); (3) You can pick up the goods from our company and pay in cash. 2. The above is exclusive of taxes and special packaging. (Customers who need it can talk to us in advance.) 3. The above is delivery, excluding freight and tax 4. If you are not familiar with the product, please contact to send samples and confirm before placing an order. If the quality is not a problem, you can place an order. The quality is based on the samples (sample fees need to be paid for samples) Buyer Notice: 1、 Win win: The buyer checks upon receipt of the goods and if there are any issues, please contact us promptly Contact the seller's customer service, and any dissatisfaction can be raised. We are all striving for mutual benefit, and we will try our best to satisfy you. If you give a positive or negative review without communication, we will consider it a malicious review and initiate a complaint, and cancel all after-sales services 2、 Our store defaults to normal, all of which are available. If the buyer is located in a more convenient location, they can contact customer service before placing an order. 3、 Repair: Products sent back for repair should be labeled with a sticker indicating the cause of the defect and identified as our factory's product. As the product cannot be controlled to 100%, individual defects will accumulate to a certain amount before being returned for replacement and repair. The shipping fee will be paid by the buyer first (which will be cheaper), and the shipping fee will be replaced with the product when placing an order. If no further purchase is required, the shipping fee will be refunded to the buyer through a transfer. We do not accept any collect repair packages, and we do not need to send them back in case of individual issues. Such situations are not accepted. We hope you understand that we do not need to waste money on postage. 4、 Receiving: Before the buyer signs for the package, please open the package or express to check if the goods are damaged, missing, or have mismatched items; The risk of damage, shortage, or incorrect items shall be borne by the seller before the buyer signs for them; Delivery (after the buyer signs for it) shall be borne by the buyer, and the seller shall not be responsible for the above risks; If there is a situation where the buyer signs for the package first and then opens it for inspection, the buyer should request the staff to supervise and open the package for inspection on the spot; If any inconsistency is found, the seller should be contacted in a timely manner and detailed information should be added to the receipt, and the signature of the staff should be confirmed. 5、 The quantity displayed online is actually to express production capacity and demand. However, due to targeting a large customer base, there may be situations where the product is not in demand. When placing an order, you can first contact the seller and determine the delivery date. 6、 Delivery time: If there is stock in the normal warehouse at 17:00, it can be shipped on the same day. Products after 17:00 will be shipped the next day. If there is a shortage of quantity or products that need to be reproduced, the delivery time after communicating with you shall prevail. 7、 Shooting: All products are photographed in physical form. Due to lighting issues, the color may not be 100% close to the actual product. Please take photos with caution if you have particularly high color requirements. Alternatively, you can choose to take a sample first before placing an order.