HDEB-TWS004 ENC Wireless Earbuds Bluetooth 5.3 Headphones with LED Touch Screen 50H Playtime Deep Bass Stereo Ear Buds with Mic IPX7 Waterproof in Ear Earphones for Pad Tablet Laptop Android/iOS Phones

Model: HDEB-TWS004 short-stem headset 「Intelligent color screen multifunctional headset」       Colors: white, black

1. Chip: Jerry 6983D4 noise reduction.         2. Version: 5.4 【Dual-ear call】.         3. Operating frequency: 2.402 - 2.480 GHz.         4. Supported protocols: A2DP/AVRCP/HFP/HID/AVCTP/AVDTP, and SPP.         5. Transmission distance: 15M 【without obstacles】.         6. Response frequency: 20 - 20000Hz.

7. Speaker unit: Φ13, 32Ω±15%, 7.118±3DB, 5mW.         8. Microphone: 2718 silicon microphone, -42±3dB.         9. Charging input standard: contacts, DC4.75 - 5.25V/600MAH.         10. Battery type: 3.7V polymer battery 240mAH with protection board (3C fast charging battery), earphone battery 28mah.         11. Charging time: 1h.         12. Earphone working time: Continuously playing at 100% volume is about 5.5 hours.         Packing size: 57.5×34×48cm.        Packing quantity: 100pcs.