Sleep Bluetooth 5.3 Headset Mini Invisible Headphones In-Ear TWS Earbuds LED Digital Display 28H Long Life HIFI Stereo Earphone for android/IOS

Specification； Bluetooth version: 5.3 Earphone type: In-ear Microphone: Yes Noise Reduction: Active Waterproof: Yes Playback Control: Yes Bluetooth Solution: Bluetooth AB5656A2 Charging time: about 2H Transmission distance: ≥10M Standby time: about 80day Call endurance: about 3-4H Charging interface: type-c Charging compartment capacity: 250mah Rated voltage: 3.7V Horn specifications: 10MM Wireless frequency: 2.4GHZ Support protocol: A2DP1.3/HFP1.6/HSP1.2/AVRCP1.6/D11.3 Transmission distance: 15 meters Battery capacity: 400909 25mAh (headset) 502030 250 (bottom compartment) Charging voltage/current: 5V/1A Playback/talk time: approx. 5 hours Charging time: approx. 2 hours Standby time: 180 hours Speaker impedance: Φ10mm32Ω/5mW Microphone sensitivity:? ±3dB Operating temperature: -10-50℃

Features: 1. Sleep headset II upgraded, smaller, thinner, lighter, easy to handle all ear types side sleep, lying down, pressure on the ear will not pinch the ear, will not hurt the ear;

2. Equipped with the new Bluetooth 5.3 version, excellent performance to further enhance communication efficiency and anti-interference, power consumption is further reduced, and the connection is more rapid and stable;

3. 28h long standby endurance, upgraded Bluetooth 5.3 chip + polymer battery, a single time can listen to about 8 hours, with the charging compartment can listen to 28 hours, set off to faraway places can also have a full sense of security;

4. HD call noise reduction;

5. HiFi lossless sound quality.

Package includes: 1 pair of Bluetooth headphones 1x charging bay 1x charging cable 1x Instruction Manual