Specifications: Color: Black, Blue;  Bluetooth version: BT 5.0 + EDR;  Input voltage: DC 5V;  Earphone frequency: 2.4GHZ;  Charging time: About 2 hours;  Playtime: About 4-5 hours;  Standby time: 150 hours; ...

 Features: 1. Bluetooth 5.0 technology, using the latest Bluetooth technology of version 5.0, it can be compatible with the old version, bringing the advantages of faster and longer transmission distance....

Specification: Color: Black;  Bluetooth version: BT 5.0;  Input voltage: DC 5V;  Impedance: 3.5Ω;  Speaker sensitivity: 105dB;  Speaker frequency: 20-20khz;  Microphone sensitivity: -42dB- 2dB;  Earphone frequency: 2.4-2.48GHZ;  Compatible protocol: A2DP/ HFP/...

Features: Easy Controls: Simple Touch Pad gestures allow you to control calls, track skip, play/pause, volume, and your voice assistant.  Workout Reay: IPX4 sweatproof, water-resistant design with silicon coated control...

Specifications: Wireless connection: Bluetooth 5.0;  Noise reduction: CVC8.0;  Bluetooth transmission distance: about 10m;  Headset battery capacity: 50mAh;  Battery Charging case capacity: 2000mAh;  Automatic boot up: support;  Automatic matching: support;  Battery...

Features: -Bluetooth 5.0 chip: lower power consumption, more stable.  -HiFi high fidelity sound surging heavy bass.  -Large capacity life, equipped with a charging box of a 350mAh capacity.     Specifications:...

Specifications: Bluetooth version: 5.0;  Bluetooth chip: AB1536U;  Supported protocols: HFP1.7, HSP1.2, A2DP1.3, AVRCP1.6, SPP1.2, PBAP1.0;  Support audio format: SBC, AAC;  Support wake up SIRI;  Transmit power: Class II ≥10M;  Frequency response scope:...

Specification: Color: Black, White, Red;  Bluetooth version: BT 5.0 + EDR;  Input voltage: DC 5V;  Current: 100mA;  Earphone frequency: 2.4-2.48GHZ;  Compatible protocol: A2DP1.2/ HFP1.6/ HSP1.1/ AVRCP1.5/ SPP1.0/ PBAP1.0;  Charging time:...